Meteorological Journal, Kept by the Assistant Secretary at the Apartments of the Royal Society, by Order of the President and Council

METEOROLOGICAL JOURNAL, KEPT BY THE ASSISTANT SECRETARY AT THE APARTMENTS OF THE ROYAL SOCIETY, BY ORDER OF THE PRESIDENT AND COUNCIL. MDCCCXXVIII. ## METEOROLOGICAL JOURNAL FOR JANUARY, 1827. | 9 o'clock, A.M. | 3 o'clock, P.M. | Dew Point at 9 A.M. in degrees of Fahr. | External Thermometer. | Rain, in inches. Read off at 9 A.M. | Direction of the Wind at 9 A.M. | Remarks. | |-----------------|-----------------|----------------------------------------|-----------------------|-----------------------------------|-------------------------------|----------| | Barom. | Attach. Therm. | Barom. | Attach. Therm. | Fahrenheit. Self-registering. | Lowest. Highest. | | | 1 | 29.940 | 47.0 | 29.764 | 48.5 | 43 | 45.5 | 47.5 | 44.0 | 47.5 | SW | Overcast. | | 2 | 29.526 | 45.0 | 29.611 | 38.0 | 37 | 37.0 | 37.5 | 35.0 | 38.0 | NW | Fine. | | 3 | 29.545 | 35.5 | 29.463 | 37.0 | 16 | 22.5 | 28.0 | 16.0 | 29.0 | NE | Cloudy. | | 4 | 29.641 | 30.5 | 29.675 | 32.0 | 18 | 20.0 | 26.0 | 18.0 | 48.2 | NW | Overcast and foggy. | | 5 | 30.054 | 32.0 | 30.174 | 33.1 | 28 | 28.5 | 30.0 | 25.9 | 30.0 | N var. | Cloudless—strong haze. | | 6 | 30.334 | 32.0 | 30.271 | 34.0 | 21 | 28.4 | 32.4 | 26.0 | 39.2 | SW | Strong haze—hail and rain. | | 7 | 30.108 | 36.0 | 30.090 | 37.8 | 38 | 39.2 | 42.0 | 32.2 | 46.7 | SW | Strong fog. | | 8 | 29.991 | 40.2 | 29.926 | 42.2 | 42 | 46.6 | 49.2 | 40.8 | 49.6 | SW | Strong fog. | | 9 | 29.867 | 43.9 | 29.789 | 45.2 | 38 | 42.1 | 45.2 | 42.0 | 45.2 | W var. | Fine—light clouds and haze. | | 10 | 29.875 | 43.0 | 29.462 | 43.7 | 39 | 40.7 | 44.3 | 39.0 | 49.5 | SW | Rain—hazy—brisk wind. | | 11 | 29.293 | 42.9 | 29.263 | 43.8 | 39 | 39.0 | 39.2 | 37.4 | 39.2 | SW | Fine—cloudy. | | 12 | 29.195 | 41.2 | 29.530 | 42.0 | 37 | 37.2 | 39.0 | 35.2 | 39.0 | NNW | Cloudy and foggy. | | 13 | 29.959 | 38.8 | 29.795 | 40.6 | 34 | 33.9 | 39.1 | 30.5 | 48.8 | SW | Night. Rain—foggy. Violent wind during the night. | | 14 | 29.428 | 42.8 | 29.379 | 45.9 | 44 | 48.8 | 45.9 | 39.4 | 48.8 | SW var. | Fine—cloudy. Strong wind. | | 15 | 30.149 | 39.6 | 30.234 | 41.9 | 27 | 34.0 | 37.8 | 32.6 | 41.0 | NW | Fine—hazy. | | 16 | 30.050 | 40.7 | 29.969 | 42.7 | 40 | 41.2 | 46.2 | 36.2 | 47.6 | SW | Overcast and foggy. | | 17 | 30.227 | 41.8 | 30.255 | 42.9 | 37 | 37.2 | 39.3 | 36.8 | 39.3 | N var. | Cloudy—faint haze. | | 18 | 30.251 | 40.6 | 30.254 | 41.1 | 34 | 34.3 | 36.5 | 34.2 | 36.5 | NNE | Cloudy and foggy. | | 19 | 30.266 | 36.0 | 30.290 | 37.7 | 28 | 33.0 | 34.2 | 31.6 | 34.2 | NE | Fine—cloudy. Strong fog A.M. | | 20 | 30.204 | 35.6 | 30.110 | 36.4 | 27 | 30.0 | 32.8 | 27.8 | 32.8 | N | Fine—light clouds. | | 21 | 29.833 | 33.2 | 29.743 | 33.0 | 25 | 27.0 | 26.8 | 26.1 | 29.5 | NE | A.M. Snow, in small flakes. P.M. Fine—light stretching clouds. | | 22 | 29.469 | 33.0 | 29.600 | 32.4 | 28 | 28.0 | 27.1 | 25.2 | 27.1 | NE | A.M. Snow, in small flakes. P.M. Fine—light stretching clouds. | | 23 | 29.597 | 29.2 | 29.543 | 31.9 | 26 | 27.0 | 28.9 | 21.2 | 28.9 | NNW | Cloudy. Light fall of snow. | | 24 | 29.531 | 31.2 | 29.578 | 33.6 | 27 | 28.8 | 32.5 | 26.5 | 32.5 | SW | Dark—strong fog. | | 25 | 29.628 | 32.0 | 29.625 | 33.2 | 29 | 29.0 | 30.9 | 27.0 | 30.9 | NE | A.M. Snow—foggy. P.M. Fine—nearly cloudless. | | 26 | 29.667 | 29.7 | 29.681 | 33.0 | 24 | 24.3 | 32.2 | 18.0 | 32.2 | W | A.M. Overcast. P.M. Nearly cloudless. Light haze. | | 27 | 30.099 | 33.2 | 30.199 | 34.5 | 25 | 32.0 | 32.8 | 30.1 | 32.8 | N | Cloudy and overcast. | | 28 | 30.165 | 31.8 | 30.032 | 35.5 | 26 | 29.5 | 37.0 | 24.0 | 42.0 | SSW | Cloudy and overcast. | | 29 | 29.903 | 37.5 | 29.848 | 40.8 | 42 | 42.0 | 44.0 | 36.8 | 44.0 | SW | Cloudy and overcast. | | 30 | 29.777 | 39.4 | 29.725 | 40.8 | 37 | 36.9 | 40.0 | 34.5 | 40.0 | S | Fine and clear—light clouds. | | 31 | 29.697 | 40.6 | 29.681 | 42.9 | 39 | 40.0 | 44.0 | 36.6 | 44.0 | S | Overcast and foggy. | Mean Mean Mean Mean Mean Mean Mean Mean Sum | 29.847 | 37.3 | 29.824 | 38.6 | 26.3 | 34.3 | 37.0 | 31.2 | 39.2 | 1,080 | Monthly Mean of the Barometer, corrected for Capillarity and reduced to 32° Fahr. ................. { 9 A.M. 3 P.M. } { 29.837 29.811 } ### OBSERVANDA. Height of the Cistern of the Barometer above a Fixed Mark on Waterloo Bridge........................ = 83 feet 2½ in. ................................................................. above the mean level of the Sea (presumed about) .......... = 95 feet. The External Thermometer is 2 feet higher than the Barometer Cistern. Height of the Receiver of the Rain Gauge above the Court of Somerset House........................ = 79 feet 0 in. The hours of observation are of Mean Time, the day beginning at Midnight. The Thermometers are graduated by Fahrenheit's Scale. The Barometer is divided into inches and decimals. | 1827. February | 9 o'clock, A.M. | 3 o'clock, P.M. | Dew Point at 9 A.M. in degrees of Fahr. | External Thermometer | Rain, in inches, Read off 9 A.M. | Direction of the Wind at 9 A.M. | Remarks | |---------------|-----------------|-----------------|----------------------------------------|---------------------|-------------------------------|-----------------------------|---------| | | Barom. | Attach. Therm. | Barom. | Attach. Therm. | Fahrenheit. | Self-registering. | Highest. | Lowest. | SE Overcast and foggy. | | 1 | 29.752 | 43.0 | 29.741 | 44.0 | 40 | 39.9 | 42.5 | 39.9 | ESE A.M. Fine—light haze. P.M. Cloudy—brisk wind. | | 2 | 29.913 | 41.2 | 29.964 | 42.1 | 27 | 35.0 | 38.1 | 35.0 | NNWvar Fine—cloudy—brisk wind. | | 3 | 30.376 | 36.2 | 30.476 | 37.5 | 18 | 31.0 | 33.7 | 28.6 | N Overcast and hazy. | | 4 | 30.558 | 35.0 | 30.537 | 37.8 | 31 | 33.2 | 36.8 | 28.3 | NE A.M. Cloudy. P.M. Fine—light clouds. | | 5 | 30.496 | 36.5 | 30.429 | 38.2 | 33 | 35.0 | 35.9 | 32.8 | N Cloudy and hazy. | | 6 | 30.285 | 35.0 | 30.265 | 38.1 | 32 | 32.5 | 39.9 | 27.9 | N Fine and clear—nearly cloudless. | | 7 | 30.415 | 37.8 | 30.402 | 39.7 | 34 | 36.4 | 39.2 | 33.0 | NNE Very fine—nearly cloudless. | | 8 | 30.450 | 35.8 | 30.449 | 37.2 | 32 | 32.3 | 34.3 | 29.3 | NNE Fine and cloudless—light haze. | | 9 | 30.365 | 34.0 | 30.303 | 36.1 | 25 | 30.2 | 33.8 | 28.2 | NNE Fine—light haze. | | 10 | 30.164 | 33.3 | 30.057 | 36.2 | 29 | 29.4 | 34.8 | 27.7 | NE Overcast and foggy. | | 11 | 29.819 | 34.4 | 29.768 | 35.0 | 30 | 30.1 | 32.3 | 30.0 | N Cloudy and foggy. | | 12 | 29.861 | 35.2 | 29.883 | 38.0 | 35 | 35.2 | 38.0 | 30.9 | NNW Fine—light clouds and haze—brisk wind. | | 13 | 30.082 | 35.8 | 30.151 | 38.7 | 32 | 33.1 | 37.6 | 31.2 | SW Cloudy and hazy. | | 14 | 30.055 | 35.3 | 29.978 | 38.2 | 31 | 31.2 | 39.0 | 27.2 | N Fine—cloudy—brisk wind. | | 15 | 29.857 | 37.1 | 29.947 | 38.8 | 35 | 35.1 | 33.9 | 31.1 | ESE A.M. Very strong fog. P.M. Cloudless—brisk wind. | | 16 | 30.136 | 33.3 | 30.101 | 35.1 | 8 | 28.8 | 29.9 | 23.2 | SSW Cloudy. | | 17 | 29.939 | 30.4 | 29.888 | 33.2 | 21 | 21.1 | 30.2 | 19.0 | ESE A.M. Very strong fog. P.M. Cloudless—brisk wind. | | 18 | 30.045 | 29.9 | 30.045 | 31.9 | 22 | 25.3 | 28.0 | 19.6 | ESE A.M. Very strong fog. P.M. Cloudless—brisk wind. | | 19 | 29.921 | 29.1 | 29.792 | 31.1 | 25 | 25.1 | 27.3 | 23.1 | ENE Cloudy and hazy. | | 20 | 29.674 | 27.2 | 29.645 | 30.8 | 22 | 25.2 | 30.5 | 20.9 | N Overcast and hazy. | | 21 | 29.634 | 33.2 | 29.650 | 35.0 | 32 | 35.0 | 36.8 | 30.0 | N Cloudy and hazy. | | 22 | 29.849 | 34.3 | 29.944 | 36.8 | 32 | 32.5 | 37.0 | 31.3 | WSW Fine—cloudy—hazy. | | 23 | 30.058 | 32.2 | 29.998 | 37.3 | 26 | 26.0 | 38.2 | 23.2 | WSW Fine—cloudy—hazy. | | 24 | 29.937 | 35.0 | 29.942 | 37.3 | 23 | 34.2 | 39.0 | 28.3 | WSW Cloudy. | | 25 | 30.159 | 33.6 | 30.126 | 37.3 | 26 | 28.0 | 39.6 | 24.8 | N A.M. Very strong fog. P.M. Cloudless—brisk wind. | | 26 | 29.833 | 36.8 | 29.744 | 40.1 | 36 | 37.9 | 46.3 | 32.9 | SSW Cloudy—brisk wind. Strong gales in the night. | | 27 | 29.479 | 44.8 | 29.526 | 47.8 | 47 | 50.1 | 52.5 | 46.0 | SE A.M. Fine and clear. P.M. Cloudy—brisk wind. | | 28 | 29.687 | 44.2 | 29.508 | 46.0 | 38 | 38.3 | 48.9 | 37.7 | ESE Overcast and foggy. Rain. Strong boisterous wind in the night. | Monthly Mean of the Barometer, corrected for Capillarity and reduced to 32° Fahr. \[ \{ \text{9 A.M.} \quad 30.028 \quad 35.3 \quad 30.009 \quad 37.7 \quad 29.3 \quad 32.2 \quad 36.9 \quad 29.3 \quad 37.5 \quad \text{3 P.M.} \quad 30.023 \quad 29.998 \} \] **OBSERVANDA.** Height of the Cistern of the Barometer above a Fixed Mark on Waterloo Bridge = 83 feet 2½ in. above the mean level of the Sea (presumed about) = 95 feet. The external Thermometer is 2 feet higher than the Barometer Cistern. Height of the Receiver of the Rain Gauge above the Court of Somerset House = 79 feet 0 in. The hours of observation are of Mean Time, the day beginning at Midnight. The Thermometers are graduated by Fahrenheit's Scale. The Barometer is divided into inches and decimals. ## METEOROLOGICAL JOURNAL FOR MARCH, 1827. | 1827. March | 9 o'clock, A.M. | 3 o'clock, P.M. | Dew Point at 9 A.M., in degrees of Fahr. | External Thermometer | Rain, in inches. Read off at 9 A.M. | Direction of the Wind at 9 A.M. | Remarks | |-------------|-----------------|-----------------|----------------------------------------|---------------------|-----------------------------------|-------------------------------|---------| | | Barom. | Attach. Therm. | Barom. | Attach. Therm. | Fahrenheit. Self-registering. | Lowest. Highest. | | | 1 | 29.317 | 48.9 | 29.438 | 51.2 | 49 | 50.0 | SSW | | | | | | | | 51.8 | Fine—cloudy—strong wind. | | 2 | 29.284 | 49.8 | 29.364 | 49.1 | 47 | 47.0 | SSW | | | | | | | | 41.7 | A.M. Heavy rain and boisterous wind. | | | | | | | | 43.8 | P.M. Fine—light clouds. | | 3 | 29.465 | 47.0 | 29.295 | 48.3 | 43 | 43.0 | S var. | | | | | | | | 46.8 | Cloudy—brisk wind. | | 4 | 28.817 | 48.5 | 28.782 | 50.2 | 46 | 46.2 | S var. | | | | | | | | 47.8 | Fine—cloudy. Strong wind. | | 5 | 29.741 | 43.2 | 29.641 | 46.8 | 30 | 36.9 | WSW | | | | | | | | 43.9 | A.M. Cloudy—light wind. P.M. Fine. | | | | | | | | 32.0 | P.M. Fine and clear. Violent gales, with showers during the day. | | 6 | 29.069 | 47.0 | 28.957 | 49.2 | 46 | 48.1 | WSW | | | | | | | | 47.5 | SW | | | | | | | | 42.8 | Fine and cloudless—brisk wind. | | 7 | 29.553 | 45.9 | 29.367 | 49.5 | 41 | 41.2 | SSW var. | | | | | | | | 48.5 | Cloudy—violent wind. | | 8 | 28.856 | 48.5 | 28.923 | 50.8 | 46 | 46.9 | NNE | | | | | | | | 48.9 | Lightly overcast. | | 9 | 29.407 | 44.6 | 29.419 | 46.2 | 32 | 37.5 | N | | | | | | | | 41.0 | Cloudless and very fine—light breeze. | | 10 | 29.728 | 40.4 | 29.830 | 44.0 | 33 | 36.8 | WSW | | | | | | | | 43.0 | Cloudy—brisk wind. | | 11 | 29.527 | 45.2 | 29.577 | 48.7 | 47 | 50.0 | N | | | | | | | | 53.8 | Fine—light haze. | | 12 | 29.676 | 49.2 | 29.872 | 51.6 | 47 | 48.3 | SW | | | | | | | | 54.0 | Dissolving clouds—slight fog—light breeze. | | 13 | 29.859 | 49.8 | 29.868 | 52.9 | 48 | 49.3 | SW | | | | | | | | 54.8 | Fine and clear. | | 14 | 29.762 | 50.9 | 29.874 | 52.8 | 40 | 47.3 | WNW | | | | | | | | 49.9 | A.M. Overcast and foggy. P.M. Fine and clear—light wind. | | 15 | 29.627 | 48.9 | 29.623 | 50.0 | 42 | 44.8 | WSW | | | | | | | | 45.6 | NW | | | | | | | | 41.4 | Fine—lightly overcast. | | 16 | 30.147 | 45.5 | 30.119 | 48.4 | 36 | 39.8 | SSW | | | | | | | | 46.9 | Overcast and foggy. | | 17 | 29.367 | 48.4 | 29.408 | 49.2 | 44 | 46.2 | WSW | | | | | | | | 45.9 | A.M. Cloudy. P.M. Very fine—light haze. | | 18 | 30.025 | 42.3 | 30.086 | 44.8 | 32 | 38.7 | SW | | | | | | | | 43.0 | Fine—nearly cloudless—light wind. | | 19 | 30.330 | 41.9 | 30.306 | 45.2 | 30 | 38.7 | W | | | | | | | | 44.0 | Fine—cloudy. | | 20 | 30.236 | 45.0 | 30.187 | 47.9 | 46 | 47.0 | WSW | | | | | | | | 52.6 | Cloudy. | | 21 | 30.079 | 48.5 | 30.053 | 51.2 | 47 | 50.0 | NNW | | | | | | | | 52.5 | Fine—lightly overcast. | | 22 | 30.083 | 50.4 | 30.045 | 53.5 | 48 | 49.2 | SW | | | | | | | | 57.2 | A.M. Cloudy. P.M. Very fine—light haze. | | 23 | 30.106 | 52.6 | 30.074 | 55.0 | 50 | 52.2 | WSW | | | | | | | | 57.2 | Fine—nearly cloudless—light wind. | | 24 | 30.081 | 53.2 | 30.084 | 56.7 | 50 | 50.3 | W | | | | | | | | 55.2 | Fine—cloudy. | | 25 | 29.977 | 52.7 | 30.015 | 54.2 | 49 | 49.5 | WSW | | | | | | | | 50.2 | Cloudy. | | 26 | 30.284 | 46.1 | 30.247 | 49.2 | 30 | 39.7 | NNW | | | | | | | | 46.8 | Fine—lightly overcast. | | 27 | 29.971 | 47.6 | 29.851 | 50.3 | 40 | 44.9 | SSW | | | | | | | | 49.3 | Cloudy—light showers. | | 28 | 29.658 | 50.2 | 29.455 | 53.2 | 38 | 48.5 | SW | | | | | | | | 52.2 | Fine—cloudy. Violent gales. | | 29 | 29.245 | 49.7 | 29.282 | 51.8 | 38 | 44.8 | W var. | | | | | | | | 47.2 | A.M. Fine and clear. P.M. Cloudy—brisk wind—showery. | | 30 | 29.401 | 49.5 | 29.438 | 49.8 | 39 | 42.0 | WSW | | | | | | | | 45.4 | Overcast—brisk wind—showery. | | 31 | 30.141 | 48.5 | 30.139 | 50.4 | 30 | 47.1 | SW | | | | | | | | 49.6 | Fine—light clouds. | Monthly Mean of the Barometer, corrected for Capillarity and reduced to 32° Fahr. ................. { 9 A.M. 3 P.M. } { 29,668 29,655 } ### OBSERVANDA. Height of the Cistern of the Barometer above a Fixed Mark on Waterloo Bridge ...................... = 83 feet 2½ in. .......................................................... above the mean level of the Sea (presumed about) ........... = 95 feet. The External Thermometer is 2 feet higher than the Barometer Cistern. Height of the Receiver of the Rain Gauge above the Court of Somerset House ....................... = 79 feet 0 in. The hours of observation are of Mean Time, the day beginning at Midnight. The Thermometers are graduated by Fahrenheit's Scale. The Barometer is divided into inches and decimals. | 1827. April | 9 o'clock, A.M. | 3 o'clock, P.M. | Dew Point at 9 A.M. in degrees of Fahr. | External Thermometer. | Rain, in inches. Read off at 9 A.M. | Direction of the Wind at 9 A.M. | Remarks | |------------|-----------------|-----------------|----------------------------------------|----------------------|----------------------------------|-----------------------------|----------| | | Barom. | Attach. Ther. | Barom. | Attach. Ther. | Fahrenheit. | Self-registering. | Highest. | Lowest. | Highest. | Rain. | Direction. | Remarks | | ☀ 1 | 30.169 | 47.0 | 30.118 | 48.9 | 41 | 43.6 | 46.3 | 40.0 | 48.0 | W | Overcast—light fog. Showery. | | ☉ 2 | 30.120 | 48.2 | 30.086 | 51.3 | 47 | 48.2 | 55.8 | 44.7 | 55.9 | WSW | Cloudy and foggy. | | ★ 3 | 30.086 | 51.2 | 30.058 | 53.6 | 51 | 51.2 | 54.9 | 47.8 | 54.9 | W | Overcast and foggy. | | ☮ 4 | 30.121 | 52.1 | 30.102 | 55.6 | 50 | 50.8 | 56.9 | 45.2 | 57.3 | SW | Cloudy—light breeze. | | ☣ 5 | 30.109 | 54.8 | 30.069 | 57.5 | 49 | 54.2 | 60.9 | 48.1 | 61.4 | S | Very fine and clear—light breeze. | | ☹ 6 | 29.953 | 58.8 | 29.982 | 61.1 | 53 | 60.0 | 64.6 | 51.1 | 65.0 | SSE | Fine—fleecy clouds—light breeze. | | ☼ 7 | 30.136 | 57.5 | 30.154 | 59.2 | 43 | 51.8 | 59.8 | 49.6 | 60.4 | WNW | Fine—light clouds. | | ☺ 8 | 30.358 | 57.2 | 30.309 | 59.3 | 46 | 53.2 | 57.1 | 47.8 | 57.8 | ESE | Fine—cloudy. | | ☯ 9 | 30.106 | 56.8 | 29.990 | 59.7 | 48 | 53.0 | 61.2 | 46.9 | 61.9 | SSW | Very fine and clear—thin clouds—light wind. | | ☢ 10 | 29.872 | 55.2 | 29.858 | 58.5 | 48 | 51.6 | 56.2 | 46.2 | 56.7 | WSW | Cloudy. | | ☠ 11 | 29.896 | 54.8 | 29.887 | 58.2 | 51 | 52.5 | 55.9 | 46.2 | 56.4 | SE | Cloudy. | | ☣ 12 | 29.797 | 55.2 | 29.788 | 56.0 | 49 | 51.2 | 51.9 | 45.5 | 52.3 | S | Cloudy—showery. | | ☹ 13 | 30.111 | 53.9 | 30.128 | 56.6 | 47 | 47.2 | 56.7 | 41.1 | 56.8 | NW | Fine—cloudy. | | ☽ 14 | 30.210 | 53.0 | 30.143 | 56.1 | 40 | 49.1 | 57.0 | 41.8 | 57.3 | NNE | Very fine—light clouds. | | ☢ 15 | 30.063 | 54.2 | 30.051 | 57.0 | 50 | 51.0 | 54.7 | 46.3 | 55.0 | NNW | Cloudy. | | ☠ 16 | 30.065 | 53.7 | 30.055 | 56.4 | 40 | 48.8 | 52.0 | 45.8 | 52.4 | N | Cloudy. | | ☣ 17 | 30.045 | 51.8 | 30.007 | 54.8 | 45 | 46.3 | 50.8 | 41.2 | 51.4 | N | Lowering. At 3h 30m P.M. heavy rain, with hail. | | ☹ 18 | 29.913 | 50.0 | 29.849 | 51.6 | 44 | 44.4 | 46.8 | 41.2 | 47.4 | N | Overcast and foggy—showery. | | ☽ 19 | 29.750 | 50.8 | 29.700 | 53.5 | 47 | 47.4 | 52.0 | 44.3 | 52.2 | E | Cloudy. | | ☢ 20 | 29.655 | 48.6 | 29.613 | 51.8 | 42 | 42.0 | 49.3 | 39.8 | 49.8 | ESE | Fine—cloudy. | | ☠ 21 | 29.518 | 48.9 | 29.532 | 50.8 | 46 | 46.8 | 49.2 | 43.7 | 49.5 | 0.031 | ENE | Overcast—showery. | | ☣ 22 | 29.681 | 47.8 | 29.720 | 48.2 | 43 | 43.8 | 44.0 | 41.4 | 44.0 | N var. | Overcast—brisk wind. | | ☹ 23 | 29.721 | 45.2 | 29.684 | 46.2 | 33 | 42.0 | 43.7 | 37.2 | 43.7 | NNE | Lowering. | | ☽ 24 | 29.523 | 44.2 | 29.566 | 47.5 | 39 | 41.2 | 44.0 | 35.1 | 45.8 | S var. | Cloudy—showery. | | ☢ 25 | 29.775 | 48.2 | 29.843 | 48.8 | 30 | 45.2 | 51.0 | 33.5 | 51.0 | WSW | Fine and clear—light clouds. | | ☠ 26 | 30.128 | 47.0 | 30.187 | 49.6 | 35 | 44.0 | 52.5 | 35.5 | 53.1 | SW | Fine and clear—light clouds. | | ☣ 27 | 30.324 | 51.8 | 30.265 | 52.9 | 36 | 51.8 | 56.6 | 32.8 | 57.0 | SSE | Fine—light clouds. | | ☹ 28 | 30.118 | 53.8 | 30.031 | 55.6 | 48 | 54.9 | 62.0 | 41.8 | 63.9 | SE | Clear and cloudless. | | ☽ 29 | 30.030 | 58.5 | 30.027 | 60.4 | 55 | 63.5 | 65.2 | 46.7 | 67.6 | E | Clear and cloudless. | | ☢ 30 | 30.079 | 62.1 | 30.052 | 64.3 | 55 | 65.5 | 72.0 | 51.2 | 73.5 | NW | Fine and clear—light clouds. | Mean Mean Mean Mean Mean Mean Mean Mean Sum 29.981 52.4 29.962 54.7 45.0 49.9 54.7 43.3 55.3 0.041 Monthly Mean of the Barometer, corrected for Capillarity and reduced to 32° Fahr. \[ \{ \text{9 A.M.} \quad \text{3 P.M.} \} \] \[ \{ 29.933 \quad 29.908 \} \] **OBSERVANDA.** Height of the Cistern of the Barometer above a Fixed Mark on Waterloo Bridge = 83 feet 2½ in. above the mean level of the Sea (presumed about) = 95 feet. The External Thermometer is 2 feet higher than the Barometer Cistern. Height of the Receiver of the Rain Gauge above the Court of Somerset House = 79 feet 0 in. The hours of observation are of Mean Time, the day beginning at Midnight. The Thermometers are graduated by Fahrenheit's Scale. The Barometer is divided into inches and decimals. ## METEOROLOGICAL JOURNAL FOR MAY, 1827. | 9 o'clock, A.M. | 3 o'clock, P.M. | Dew Point at 9 A.M. in degrees of Fahr. | External Thermometer. | Rain, in inches. Read off at 9 A.M. | Direction of the Wind at 9 A.M. | Remarks | |-----------------|-----------------|----------------------------------------|----------------------|-----------------------------------|-------------------------------|---------| | Barom. | Attach. Therm. | Barom. | Attach. Therm. | Fahrenheit. Self-registering. | Lowest. Highest. | | | 1 | 30.053 | 63.1 | 30.033 | 66.5 | 56 | 62.1 | 69.2 | 56.1 | 69.8 | WSW | Fine—cloudy. | | 2 | 30.036 | 59.8 | 29.988 | 61.8 | 51 | 51.2 | 60.8 | 50.0 | 62.6 | SE | Fine—light wind. | | 3 | 29.953 | 64.0 | 29.913 | 65.5 | 56 | 60.7 | 67.9 | 51.0 | 68.8 | WSW | Fine—light clouds. | | 4 | 29.906 | 63.0 | 29.884 | 65.1 | 54 | 57.0 | 64.2 | 50.7 | 64.9 | NW | Cloudy. | | 5 | 29.678 | 60.0 | 29.625 | 61.2 | 55 | 55.9 | 56.0 | 51.8 | 56.0 | S | Lowering—rain. | | 6 | 29.302 | 59.3 | 29.172 | 60.0 | 54 | 54.5 | 55.9 | 53.0 | 56.8 | SSW | Overcast—showery. | | 7 | 29.667 | 56.2 | 29.689 | 58.1 | 41 | 49.3 | 53.2 | 44.9 | 53.4 | N | Cloudy. | | 8 | 29.869 | 53.8 | 29.869 | 52.8 | 38 | 47.8 | 48.6 | 37.8 | 49.4 | N | Cloudy. | | 9 | 29.829 | 49.8 | 29.792 | 52.8 | 45 | 46.2 | 50.7 | 40.2 | 52.8 | 0.050 | ENE | Overcast—light fog. | | 10 | 29.797 | 55.6 | 29.763 | 56.8 | 44 | 52.0 | 54.8 | 42.2 | 55.2 | E | Cloudy. | | 11 | 29.802 | 55.3 | 29.847 | 57.0 | 41 | 52.9 | 56.8 | 41.1 | 57.8 | NNE | Lightly overcast. | | 12 | 30.126 | 57.6 | 30.095 | 56.8 | 44 | 51.2 | 53.2 | 40.7 | 53.3 | NE | Fine—nearly cloudless. | | 13 | 29.982 | 56.2 | 29.882 | 56.3 | 40 | 53.0 | 58.0 | 39.2 | 58.3 | E | Fine—nearly cloudless—light wind. | | 14 | 29.832 | 50.7 | 29.812 | 53.6 | 50 | 49.9 | 50.0 | 45.8 | 49.9 | N | Overcast and foggy. | | 15 | 29.776 | 52.7 | 29.758 | 56.2 | 49 | 49.7 | 57.6 | 47.1 | 60.0 | WSW | Fine—cloudy. | | 16 | 29.580 | 57.3 | 29.458 | 60.8 | 53 | 59.5 | 61.3 | 46.1 | 61.8 | ENE | Lowering—unsteady wind. | | 17 | 29.594 | 61.8 | 29.611 | 61.4 | 55 | 60.2 | 63.5 | 49.1 | 64.8 | ESE | Lowering. At 6h 30m P.M. thunder and lightning, with heavy rain and violent gusts of wind. Fine—cloudy. | | 18 | 29.658 | 60.9 | 29.751 | 63.7 | 57 | 57.8 | 65.6 | 53.9 | 66.2 | SSW | Fine—cloudy. | | 19 | 29.940 | 63.2 | 29.989 | 64.2 | 55 | 62.1 | 65.6 | 54.8 | 67.6 | NW | Fine—cloudy. | | 20 | 30.089 | 66.2 | 30.051 | 64.2 | 57 | 65.7 | 68.8 | 52.4 | 69.1 | SSW | Fine—light clouds. | | 21 | 30.157 | 66.2 | 30.154 | 67.8 | 57 | 64.9 | 71.3 | 51.8 | 73.8 | E | Fine—nearly cloudless. | | 22 | 30.137 | 63.8 | 30.081 | 65.0 | 60 | 61.7 | 62.1 | 53.2 | 64.2 | 0.062 | WSW | Lowering. | | 23 | 30.022 | 65.2 | 29.885 | 66.1 | 58 | 62.2 | 65.3 | 54.1 | 66.1 | A.M. Fine. P.M. Overcast. | | 24 | 29.429 | 61.5 | 29.371 | 62.2 | 54 | 57.5 | 56.8 | 53.4 | 59.2 | W | Cloudy—light haze. | | 25 | 29.375 | 59.6 | 29.371 | 62.5 | 52 | 52.4 | 55.9 | 45.1 | 59.2 | WSW | Cloudy—showery. | | 26 | 29.466 | 62.1 | 29.486 | 63.2 | 53 | 55.0 | 60.0 | 48.4 | 62.6 | SSW | Cloudy. | | 27 | 29.611 | 63.9 | 29.626 | 64.8 | 47 | 61.2 | 63.2 | 49.4 | 65.2 | SW | Fine—brisk wind. Showery. | | 28 | 29.731 | 61.7 | 29.806 | 63.0 | 58 | 60.9 | 63.7 | 54.5 | 64.3 | SSW | Cloudy. Heavy showers, and strong boisterous wind. | | 29 | 29.794 | 63.8 | 29.806 | 65.0 | 58 | 62.5 | 60.7 | 56.2 | 64.3 | 0.156 | SSW | Fine—light breeze. | | 30 | 29.918 | 66.3 | 29.879 | 67.0 | 56 | 63.5 | 66.8 | 52.1 | 67.4 | SSW | Fine and clear—light clouds. Strong wind. | | 31 | 29.726 | 67.6 | 29.745 | 65.8 | 58 | 64.3 | 64.7 | 57.1 | 65.5 | SW | | Mean Mean Mean Mean Mean Mean Mean Mean Sum | 29.801 | 60.3 | 29.779 | 61.5 | 51.8 | 56.9 | 60.4 | 49.1 | 61.6 | 0.268 | Monthly Mean of the Barometer, corrected for Capillarity and reduced to 32° Fahr. ............... { 9 A.M. 3 P.M. } { 29.732 29.708 } ### OBSERVANDA. Height of the Cistern of the Barometer above a Fixed Mark on Waterloo Bridge ......................... = 83 feet 2½ in. .......................................................... above the mean level of the Sea (presumed about) .............. = 95 feet. The External Thermometer is 2 feet higher than the Barometer Cistern. Height of the Receiver of the Rain Gauge above the Court of Somerset House ......................... = 79 feet 0 in. The hours of observation are of Mean Time, the day beginning at Midnight. The Thermometers are graduated by Fahrenheit’s Scale. The Barometer is divided into inches and decimals. ## METEOROLOGICAL JOURNAL FOR JUNE, 1827. | 9 o'clock, A.M. | 3 o'clock, P.M. | Dew Point at 9 A.M., Degrees of Fahr. | External Thermometer. | Rain, in Inches Read off at 9 A.M. | Direction of the Wind at 9 A.M. | Remarks | |-----------------|-----------------|--------------------------------------|-----------------------|----------------------------------|-------------------------------|---------| | Barom. | Attach. Therm. | Barom. | Attach. Therm. | Fahrenheit. | Self-registering. | Lowest. | Highest. | SSW | A.M. Rain—boisterous wind. P.M. Fine—cloudy. | | | | | | | | | | SE | Overcast—showery. | | | | | | | | | | NNE | Fine and clear—cloudy. | | | | | | | | | | NW | Fine and clear—light clouds. | | | | | | | | | | SSW | Overcast—showery—brisk wind. | | | | | | | | | | NNW | Fine—cloudy—brisk wind. | | | | | | | | | | NNE | Fine—cloudy. | | | | | | | | | | NE | Fine and clear—brisk wind. | | | | | | | | | | NNE | Fine and clear—gentle wind. | | | | | | | | | | NNE | Clear and cloudless—brisk wind. | | | | | | | | | | ESE | Fine—cloudy—light breeze. | | | | | | | | | | E | Cloudy—light breeze. | | | | | | | | | | SSW | Overcast—gentle wind. | | | | | | | | | | WSW | Fine—cloudy. | | | | | | | | | | SW | Dark and overcast. | | | | | | | | | | SW | A.M. Fine—nearly cloudless. P.M. Cloudy. | | | | | | | | | | NW | Fine—light clouds. | | | | | | | | | | SSW | Very clear and fine—light clouds—brisk wind. | | | | | | | | | | W | Fine—cloudy—light wind. | | | | | | | | | | W | Fine—cloudy—light wind. | | | | | | | | | | N | Fine—light clouds. | | | | | | | | | | E | Lowering. | | | | | | | | | | WSW | Fine—light clouds. | | | | | | | | | | SW | Overcast—dissolving clouds—brisk wind. | | | | | | | | | | SW | Lowering—brisk wind. Rain. | | | | | | | | | | SW | A.M. Cloudy. P.M. Fine. | | | | | | | | | | SW | A.M. Cloudy. P.M. Fine and clear—brisk wind. | Monthly Mean of the Barometer, corrected for Capillarity and reduced to 32° Fahr. ............... {9 A.M. 3 P.M.} {29.889 29.857} ### OBSERVANDA. Height of the Cistern of the Barometer above a Fixed Mark on Waterloo Bridge ...................... = 83 feet 2½ in. ................................................................. above the mean level of the Sea (presumed about) .......... = 95 feet. The External Thermometer is 2 feet higher than the Barometer Cistern. Height of the Receiver of the Rain Gauge above the Court of Somerset House .................... = 79 feet 0 in. The hours of observation are of Mean Time, the day beginning at Midnight. The Thermometers are graduated by Fahrenheit’s Scale. The Barometer is divided into inches and decimals. ## METEOROLOGICAL JOURNAL FOR JULY, 1827. | 1827. July | 9 o'clock, A.M. | 3 o'clock, P.M. | Dew Point at 9 A.M. in degrees of Fahr. | External Thermometer. | Rain, in inches. Read off at 9 A.M. | Direction of the Wind at 9 A.M. | Remarks | |------------|-----------------|-----------------|----------------------------------------|----------------------|-----------------------------------|-----------------------------|---------| | | Barom. | Attach. Therm. | Barom. | Attach. Therm. | Fahrenheit. Self-registering. | Lowest. Highest. | | | 1 | 29.779 | 65.6 | 29.780 | 68.0 | 61 | 63.0 | 68.9 | 58.8 | 70.2 | S | A.M. Lowering. P.M. Fine.—Strong breeze. | | 2 | 29.900 | 64.6 | 29.823 | 67.8 | 60 | 60.2 | 69.6 | 59.0 | 70.8 | 0.016 ESE | A.M. Rain. P.M. Fine—cloudy—light breeze. | | 3 | 29.896 | 71.2 | 29.964 | 69.6 | 56 | 66.2 | 70.7 | 55.9 | 71.6 | WSW | Fine and clear—light clouds—brisk wind. | | 4 | 30.248 | 72.2 | 30.212 | 70.0 | 52 | 68.3 | 71.8 | 52.6 | 73.2 | 0.016 WSW | Clear and cloudless—showery. | | 5 | 30.295 | 67.2 | 30.373 | 70.2 | 60 | 66.6 | 69.8 | 61.2 | 71.0 | NNE | Fine and clear—cloudy—brisk wind. | | 6 | 30.498 | 68.2 | 30.448 | 68.6 | 57 | 63.4 | 71.7 | 52.8 | 73.0 | S | Cloudless—light haze. | | 7 | 30.449 | 72.5 | 30.413 | 74.2 | 63 | 72.0 | 76.8 | 59.0 | 77.8 | SW | Fine—cloudy. | | 8 | 30.442 | 74.3 | 30.406 | 74.7 | 58 | 70.3 | 76.9 | 60.8 | 77.0 | NNW | Fine and clear—cloudy—light wind. | | 9 | 30.350 | 76.8 | 30.258 | 75.1 | 59 | 73.3 | 80.0 | 61.8 | 80.9 | W | Clear and cloudless—light breeze. | | 10 | 30.206 | 75.9 | 30.095 | 74.7 | 59 | 70.2 | 76.0 | 58.2 | 76.0 | WSW | Clear and cloudless—light breeze. | | 11 | 30.106 | 65.8 | 30.145 | 70.0 | 53 | 63.7 | 68.8 | 58.6 | 70.5 | NNE | Fine—broken clouds—light haze. | | 12 | 30.215 | 67.8 | 30.211 | 70.2 | 55 | 63.4 | 72.3 | 54.2 | 73.0 | NNE | A.M. Fine—strong haze. P.M. Clear—light clouds. | | 13 | 30.266 | 73.0 | 30.232 | 71.2 | 54 | 69.0 | 71.7 | 57.4 | 72.3 | ESE | Clear and cloudless. | | 14 | 30.225 | 70.2 | 30.157 | 70.1 | 51 | 67.3 | 70.2 | 52.6 | 72.2 | ESE | Clear and cloudless. | | 15 | 30.095 | 66.8 | 30.061 | 69.5 | 56 | 66.7 | 71.9 | 51.8 | 73.6 | ENE | Fine—thin clouds. | | 16 | 30.087 | 68.3 | 30.079 | 69.3 | 55 | 66.8 | 68.8 | 55.8 | 73.0 | E | Fine—thin elevated clouds—light wind. | | 17 | 30.100 | 70.7 | 30.058 | 70.7 | 59 | 67.1 | 75.0 | 55.2 | 75.7 | ESE | Fine and clear—light breeze. | | 18 | 30.021 | 70.6 | 30.039 | 72.1 | 63 | 69.3 | 70.7 | 59.7 | 73.8 | SSW | Fine—cloudy—brisk wind. | | 19 | 30.036 | 65.0 | 29.967 | 68.1 | 58 | 63.8 | 64.0 | 57.3 | 67.2 | 0.009 SW | Lowering—strong breeze. Even dark and cloudy, with rain and strong wind. | | 20 | 29.790 | 66.9 | 29.800 | 69.8 | 57 | 63.1 | 69.4 | 60.8 | 71.5 | 0.054 WNW v. | Fine and clear—cloudy—gentle wind. | | 21 | 29.978 | 66.7 | 30.023 | 68.9 | 53 | 65.6 | 68.2 | 53.0 | 70.3 | WSW | Fine—cloudy. | | 22 | 30.066 | 67.3 | 30.024 | 66.3 | 57 | 63.2 | 61.4 | 53.0 | 64.5 | 0.054 S | Lowering—light breeze. Heavy rain at 10h. 25m. A.M. | | 23 | 30.041 | 66.2 | 30.073 | 69.2 | 60 | 60.6 | 70.3 | 60.2 | 74.0 | SSE | Lowering. | | 24 | 30.123 | 68.2 | 30.094 | 71.2 | 66 | 67.6 | 70.8 | 63.2 | 72.8 | WSW | Lowering. | | 25 | 30.096 | 68.2 | 30.028 | 70.7 | 66 | 66.2 | 69.8 | 62.3 | 70.7 | SW | A.M. Dark and lowering—showery. | | 26 | 30.170 | 68.9 | 30.088 | 70.0 | 56 | 66.6 | 68.7 | 54.5 | 73.2 | WSW | P.M. Fine and clear. | | 27 | 30.188 | 69.4 | 30.196 | 70.9 | 56 | 65.7 | 73.8 | 60.4 | 75.8 | NNW | A.M. Fine and lowering—brisk wind—showery. | | 28 | 30.251 | 71.7 | 30.232 | 74.0 | 68 | 72.1 | 78.2 | 67.0 | 78.2 | WSW | Fine—overspread with high fleecy clouds—light wind. | | 29 | 30.247 | 76.3 | 30.135 | 75.7 | 68 | 74.5 | 80.0 | 62.2 | 81.1 | W | Clear and cloudless—light breeze. | | 30 | 29.844 | 75.3 | 29.979 | 74.8 | 64 | 73.7 | 71.9 | 67.8 | 77.8 | WSW | Clear and cloudless—light breeze. | | 31 | 30.284 | 70.9 | 30.278 | 72.3 | 54 | 66.6 | 71.8 | 55.6 | 73.5 | WNW | Fine—cloudy. | | Mean | Mean | Mean | Mean | Mean | Mean | Mean | Mean | Mean | Sum | | 9 A.M. 3 P.M. | Monthly Mean of the Barometer, corrected for Capillarity and reduced to 32° Fahr. ................. = 30.042 30.021 ### OBSERVANDA. Height of the Cistern of the Barometer above a Fixed Mark on Waterloo Bridge...................... = 83 feet 2½ in. .......................................................... above the mean level of the Sea (presumed about) ............. = 95 feet. The External Thermometer is 2 feet higher than the Barometer Cistern. Height of the Receiver of the Rain Gauge above the Court of Somerset House....................... = 79 feet 0 in. The hours of observation are of Mean Time, the day beginning at Midnight. The Thermometers are graduated by Fahrenheit’s Scale. The Barometer is divided into inches and decimals. MDCCXXVIII. | 1827. August | 9 o'clock, A.M. | 3 o'clock P.M. | Dew Point at 9 A.M. in degrees of Fahr. | External Thermometer. | Rain, in inches. Read off at 9 A.M. | Direction of the Wind at 9 A.M. | Remarks | |-------------|----------------|----------------|----------------------------------------|----------------------|----------------------------------|--------------------------|---------| | | Barom. Attach. Therm. | Barom. Attach. Therm. | Fahrenheit. | Self-registering. Lowest. Highest. | | | | | 1 | 30.196 71.8 | 30.195 72.3 | 50 67.7 76.0 58.4 77.6 | SW Clear and cloudless—light wind. | | 2 | 29.950 71.4 | 29.841 74.3 | 61 71.3 77.7 58.3 80.2 | ESE Fine—lightly overcast—light breeze. | | 3 | 29.801 73.8 | 29.748 72.7 | 60 71.8 71.6 60.0 75.0 | SSW Fine—light clouds—strong breeze. | | 4 | 29.701 70.5 | 29.807 72.2 | 64 67.7 71.2 61.9 72.8 | SSW A.M. Lowering—heavy showers—brisk wind. P.M. Fine. | | 5 | 30.088 66.7 | 30.152 71.5 | 53 63.7 69.3 60.6 72.7 0.014 NW Fine—cloudy. | | 6 | 30.319 61.7 | 30.345 67.3 | 59 60.7 66.1 55.2 66.8 NE Lowering—light breeze. | | 7 | 30.347 66.0 | 30.259 67.9 | 53 64.9 67.2 53.2 71.3 ESE Fine—light clouds. | | 8 | 30.166 62.0 | 30.100 66.8 | 54 62.5 70.0 51.2 70.8 ENE Fine—light cloud—light haze. | | 9 | 30.045 65.3 | 29.992 67.7 | 58 63.9 70.0 54.5 70.6 NNE A.M. Lowering—heavy shower. P.M. Fine—light wind. | | 10 | 29.691 67.3 | 29.600 70.2 | 63 64.2 71.7 61.2 73.2 SSW Fine and clear. Thunder with rain at noon. | | 11 | 29.619 65.0 | 29.587 66.8 | 50 63.3 65.7 54.2 69.4 0.019 WSW Cloudy—gentle wind. | | 12 | 29.718 60.3 | 29.808 65.7 | 56 59.7 65.7 52.3 66.7 NW A.M. Fine—light clouds. P.M. Lowering—showery. | | 13 | 29.932 62.5 | 29.927 65.8 | 46 61.7 65.0 49.6 66.4 WSW A.M. Overcast. P.M. Fine—cloudy thin diffused clouds. | | 14 | 29.710 65.9 | 29.645 68.6 | 65 64.9 68.9 59.8 70.2 0.072 SSW Brisk wind.—A.M. Fine and clear. P.M. Lowering—thunder and lightning with rain. | | 15 | 29.393 68.2 | 29.453 69.5 | 65 64.8 69.5 62.9 71.8 SW Fine—light wind. In the evening lightning with rain. | | 16 | 29.442 63.8 | 29.496 68.1 | 63 62.7 65.7 57.4 68.5 N Fine—cloudy. Shower at 1h20m. P.M. | | 17 | 29.791 65.2 | 29.857 68.7 | 64 64.8 68.3 55.7 70.2 0.014 ESE Fine—light clouds—brisk wind. | | 18 | 30.022 63.3 | 30.039 68.0 | 63 62.8 65.6 56.9 68.8 NNE A.M. Dull and cloudy. P.M. Fine—thin diffused clouds. | | 19 | 30.026 63.2 | 30.032 66.1 | 55 60.3 64.7 54.2 67.7 NNE Dull and cloudy—light wind. | | 20 | 30.069 61.2 | 30.058 65.1 | 57 59.2 62.8 54.2 65.6 NNW A.M. Lowering. P.M. Fine—showery. | | 21 | 30.083 61.9 | 30.095 66.6 | 62 62.6 67.1 51.8 69.8 N Cloudy. | | 22 | 30.194 60.6 | 30.211 62.7 | 54 58.3 61.3 54.9 62.0 0.191 N Clear and cloudless—brisk wind. | | 23 | 30.363 60.1 | 30.363 65.2 | 53 58.4 69.4 54.9 69.6 N A.M. Fine. P.M. Overcast. | | 24 | 30.285 64.8 | 30.241 66.0 | 58 63.7 63.3 56.4 66.9 NNW Cloudy—brisk wind. | | 25 | 30.157 61.2 | 30.178 61.7 | 48 57.3 57.7 52.6 60.6 NNW Fine—cloudy—brisk wind. | | 26 | 30.181 57.2 | 30.182 60.2 | 52 56.3 59.2 50.0 59.7 NNW Fine and cloudless—faint haze. | | 27 | 30.322 57.9 | 30.313 62.7 | 55 56.8 65.2 48.3 66.2 0.106 NNW Cloudy. | | 28 | 30.317 62.6 | 30.310 65.2 | 58 60.6 64.8 56.8 67.3 NW Fine—light clouds. | | 29 | 30.435 57.8 | 30.401 62.3 | 44 56.3 65.0 48.8 66.2 NE Cloudy and foggy—light showers. | | 30 | 30.305 58.6 | 30.221 63.1 | 57 58.5 62.8 50.5 63.8 0.100 W Cloudy—light breeze. | | 31 | 30.327 58.8 | 30.342 63.9 | 56 57.8 63.9 53.7 65.0 N | Monthly Mean of the Barometer, corrected for Capillarity and reduced to 32° Fahr. = 29.954 OBSERVANDA. Height of the Cistern of the Barometer above a Fixed Mark on Waterloo Bridge = 83 feet 2½ in. above the mean level of the Sea (presumed about) = 95 feet. The External Thermometer is 2 feet higher than the Barometer Cistern. Height of the Receiver of the Rain Gauge above the Court of Somerset House = 79 feet 0 in. The hours of observation are of Mean Time, the day beginning at Midnight. The Thermometers are graduated by Fahrenheit's Scale. The Barometer is divided into inches and decimals. ## METEOROLOGICAL JOURNAL FOR SEPTEMBER, 1827. | 1827. | 9 o'clock, A.M. | 3 o'clock P.M. | Dew Point at 9 A.M. in degrees of Fahr. | External Thermometer. | Rain, in inches, Read off at 9 A.M. | Direction of the Wind at 9 A.M. | Remarks | |-------|-----------------|----------------|----------------------------------------|----------------------|----------------------------------|-------------------------------|---------| | Septemb. | Barom. | Attach. Therm. | Barom. | Attach. Therm. | Fahrenheit | Self-registering. | Lowest. | Highest. | 9 A.M. | 3 P.M. | NNE | Very fine and clear—light clouds. | | R 1 | 30.395 | 60.2 | 30.360 | 64.8 | 60 | 61.0 | 66.0 | 54.3 | 67.9 | 0.225 | NNE | Dull—cloudy. | | O 2 | 30.369 | 59.4 | 30.326 | 65.3 | 59 | 60.2 | 67.4 | 52.2 | 69.6 | 0.214 | NNE | Fine—light clouds. | | D 3 | 30.349 | 60.1 | 30.321 | 65.2 | 52 | 58.4 | 67.7 | 52.4 | 69.2 | 0.054 | NNE | Dull and cloudy—light wind. | | Z 4 | 30.345 | 58.6 | 30.304 | 61.5 | 50 | 56.8 | 60.2 | 55.0 | 60.8 | N | A.M. Cloudy. P.M. Fine—light clouds—gentle wind. | | O 5 | 30.282 | 60.3 | 30.251 | 65.8 | 57 | 59.5 | 66.8 | 54.5 | 68.0 | NNE | Lowering. | | Z 6 | 30.321 | 61.3 | 30.304 | 64.9 | 50 | 59.2 | 63.3 | 50.1 | 64.3 | NNE | Fine—cloudy and hazy—light breeze. | | O 7 | 30.316 | 60.7 | 30.242 | 63.2 | 56 | 58.3 | 61.2 | 49.8 | 63.0 | N | Overcast. | | H 8 | 30.286 | 60.7 | 30.281 | 63.5 | 55 | 58.8 | 62.0 | 55.3 | 63.2 | SE | Overcast and showery. Strong unsteady wind. | | O 9 | 30.031 | 63.7 | 29.975 | 64.9 | 57 | 62.8 | 63.7 | 56.5 | 65.6 | N | Lowering—light fog. Showers and brisk wind. | | D 10 | 29.929 | 62.3 | 29.906 | 65.0 | 60 | 59.9 | 65.0 | 58.2 | 65.7 | 0.030 | WSW | Cloudy—light wind. | | Z 11 | 29.856 | 66.2 | 29.775 | 67.4 | 64 | 65.7 | 68.3 | 62.7 | 69.5 | 0.128 | S | A.M. Frequent showers & boisterous wind. P.M. Fine & clear—brisk wind. | | O 12 | 29.761 | 65.8 | 29.793 | 66.7 | 61 | 61.2 | 60.8 | 58.9 | 66.2 | SW | Fine—cloudy—light fog. | | Z 13 | 29.951 | 63.2 | 30.059 | 65.2 | 57 | 59.0 | 61.8 | 53.6 | 64.2 | 0.039 | NW | Fine—cloudy—light wind. | | O 14 | 30.253 | 61.6 | 30.221 | 65.2 | 56 | 57.5 | 64.9 | 49.8 | 67.3 | WSW | A.M. Fine and clear. P.M. Overcast. | | H 15 | 30.303 | 64.3 | 30.305 | 67.2 | 62 | 63.0 | 67.5 | 59.4 | 69.0 | 0.017 | NNW | Dark and cloudy. | | O 16 | 30.351 | 66.2 | 30.385 | 68.3 | 65 | 65.5 | 67.3 | 61.9 | 70.0 | N | Fine—light clouds. | | D 17 | 30.370 | 65.0 | 30.329 | 67.8 | 59 | 61.2 | 66.8 | 58.5 | 67.8 | NNE | Dull—light clouds. Thunder and lightning with rain, in the evening. | | Z 18 | 30.291 | 64.3 | 30.229 | 67.2 | 61 | 61.0 | 66.6 | 57.0 | 67.8 | ESE | Clear and nearly cloudless—brisk wind. | | O 19 | 30.196 | 60.8 | 30.194 | 62.3 | 47 | 55.3 | 57.8 | 48.8 | 59.3 | NNW | Cloudy and foggy. | | Z 20 | 29.780 | 56.9 | 29.841 | 58.2 | 50 | 49.8 | 54.8 | 47.7 | 57.2 | NNE | A.M. Overcast and foggy. P.M. Fine. | | O 21 | 29.835 | 57.8 | 29.718 | 62.1 | 55 | 57.2 | 62.8 | 48.5 | 63.8 | SSW | Clear—heavy clouds. | | H 22 | 29.588 | 59.4 | 29.499 | 62.2 | 54 | 56.0 | 59.0 | 53.6 | 61.5 | SSW | Lowering—heavy rain. | | O 23 | 29.544 | 57.3 | 29.588 | 60.2 | 53 | 55.3 | 57.7 | 48.8 | 60.3 | SSE | Fine and clear—light clouds—showery. | | D 24 | 29.701 | 57.7 | 29.726 | 60.8 | 54 | 56.8 | 58.3 | 50.2 | 62.8 | SSE | Fine and nearly cloudless—brisk wind. | | Z 25 | 29.720 | 57.8 | 29.696 | 61.6 | 55 | 55.2 | 61.1 | 51.2 | 62.8 | SSW | Showery. | | O 26 | 29.642 | 59.9 | 29.595 | 63.1 | 58 | 59.8 | 64.2 | 53.2 | 67.3 | ESE | Cloudy and showery. | | Z 27 | 29.629 | 61.7 | 29.707 | 65.3 | 60 | 60.6 | 65.8 | 58.2 | 66.4 | SE | A.M. Overcast and foggy. P.M. Fine. | | O 28 | 29.748 | 62.5 | 29.757 | 64.6 | 60 | 60.3 | 62.3 | 55.9 | 63.8 | SE | Clear—overspread with high fleecy clouds. | | H 29 | 29.675 | 60.7 | 29.672 | 61.7 | 58 | 57.9 | 60.0 | 54.2 | 60.5 | ESE | Fine—overspread with high fleecy clouds. | ### Monthly Mean of the Barometer, corrected for Capillarity and reduced to 32° Fahr. | 9 A.M. | 3 P.M. | |--------|--------| | 30.021 | 61.3 | | 30.003 | 64.2 | | 56.8 | 59.1 | | 63.2 | 54.2 | | 65.0 | 0.831 | ### OBSERVANDA. Height of the Cistern of the Barometer above a Fixed Mark on Waterloo Bridge = 83 feet 2½ in. above the mean level of the Sea (presumed about) = 95 feet. The External Thermometer is 2 feet higher than the Barometer Cistern. Height of the Receiver of the Rain Gauge above the Court of Somerset House = 79 feet 0 in. The hours of observation are of Mean Time, the day beginning at Midnight. The Thermometers are graduated by Fahrenheit's Scale. The Barometer is divided into inches and decimals. | 1827. October | 9 o'clock, A.M. | 3 o'clock, P.M. | Dew Point at 9 A.M. in degrees of Fahr. | External Thermometer. | Rain, in inches, Read off at 9 A.M. | Direction of the Wind at 9 A.M. | Remarks | |--------------|-----------------|-----------------|----------------------------------------|----------------------|----------------------------------|-----------------------------|---------| | | Barom. | Attach. Therm. | Barom. | Attach. Therm. | Fahrenheit. | Self-registering. | Lowest. Highest. | | | D 1 | 29.820 | 61.0 | 29.817 | 63.6 | 58 | 58.4 | 60.8 | 55.7 | 63.5 | E | Dark and overcast—showery. | | D 2 | 29.939 | 60.3 | 29.973 | 62.8 | 55 | 55.6 | 61.8 | 53.0 | 62.2 | E | Fine and nearly cloudless—light fog. | | D 3 | 30.252 | 59.8 | 30.306 | 62.8 | 56 | 56.1 | 58.3 | 52.0 | 59.6 | NNE | Overcast—light fog. | | D 4 | 30.412 | 57.6 | 30.398 | 61.4 | 53 | 52.8 | 60.9 | 48.8 | 61.3 | WSW | { A.M. Strong haze. P.M. Fine—light clouds. } | O 5 | 30.410 | 57.8 | 30.339 | 61.3 | 55 | 54.8 | 62.3 | 50.8 | 62.8 | NNE | Fine—light clouds—hazy. | | H 6 | 30.194 | 54.7 | 30.103 | 60.7 | 54 | 53.8 | 61.0 | 46.8 | 61.4 | NNE | Fine—cloudy. | | O 7 | 29.983 | 55.3 | 29.908 | 58.8 | 49 | 49.0 | 58.8 | 46.6 | 59.2 | NE | { A.M. Strong fog. P.M. Fine—light thin clouds. } | D 8 | 29.663 | 54.9 | 29.535 | 59.1 | 54 | 55.2 | 59.6 | 47.7 | 60.8 | ESE | { Fine—fleecy clouds. Showers in the evening. } | D 9 | 29.295 | 58.2 | 29.261 | 60.9 | 58 | 57.7 | 59.0 | 52.7 | 60.6 | SE | Cloudy—strong wind. Showery. | | D 10 | 29.407 | 57.3 | 29.297 | 58.0 | 53 | 53.6 | 53.3 | 50.8 | 66.7 | 0.177 | SW | Overcast and foggy—showery. | | D 11 | 29.258 | 56.3 | 29.253 | 57.1 | 52 | 52.0 | 51.3 | 47.5 | 54.2 | SSW | { At 0h. 40m. A.M. Thunder and lightning, with heavy rain and strong boisterous wind. } | O 12 | 29.385 | 54.8 | 29.472 | 57.5 | 52 | 52.8 | 55.7 | 46.8 | 57.1 | SW | Fine—cloudy. | | H 13 | 29.510 | 49.3 | 29.465 | 53.3 | 45 | 45.0 | 51.6 | 40.8 | 51.7 | SW | { A.M. Strong fog. P.M. Fine—light clouds. } | O 14 | 29.764 | 51.2 | 29.806 | 55.0 | 50 | 50.0 | 55.4 | 44.1 | 55.8 | W | Fine—cloudy. | | D 15 | 29.944 | 54.2 | 29.935 | 57.0 | 54 | 54.5 | 60.2 | 49.8 | 61.3 | SW | Fine and clear—light clouds. | | D 16 | 29.968 | 58.4 | 29.968 | 59.8 | 58 | 59.2 | 59.6 | 54.8 | 61.0 | SSW | Lowering—brisk wind. | | D 17 | 29.901 | 57.2 | 29.852 | 59.2 | 56 | 55.7 | 58.0 | 50.7 | 58.8 | SSE | Clear and cloudless. | | D 18 | 29.777 | 54.1 | 29.758 | 58.6 | 54 | 54.2 | 60.1 | 48.2 | 60.3 | E | { A.M. Strong haze. P.M. Fine—light diffused clouds. } | D 19 | 29.791 | 57.3 | 29.788 | 60.5 | 55 | 55.8 | 61.3 | 53.9 | 62.5 | NE | { A.M. Dark—very strong fog—rain. } | H 20 | 29.766 | 58.3 | 29.726 | 60.7 | 56 | 55.9 | 59.6 | 54.4 | 60.1 | SSE | Showery—light fog. | | O 21 | 29.607 | 58.4 | 29.554 | 60.4 | 55 | 55.6 | 58.7 | 54.9 | 60.2 | W | Dark and overcast—haze. | | D 22 | 29.337 | 58.4 | 29.226 | 59.8 | 55 | 55.3 | 57.4 | 52.2 | 59.1 | SE | Fine and clear—light dissolving clouds. | | D 23 | 29.186 | 58.7 | 29.255 | 59.3 | 54 | 57.4 | 57.1 | 53.4 | 58.6 | 0.182 | SSE | Showers in the evening. | | D 24 | 29.658 | 54.9 | 29.815 | 58.0 | 52 | 52.7 | 57.3 | 50.4 | 57.3 | NE | Cloudy—heavy showers and brisk wind. | | D 25 | 30.082 | 56.6 | 30.086 | 58.5 | 55 | 55.0 | 57.4 | 51.7 | 57.8 | SE | { A.M. Strong fog. P.M. Fine. Showery. } | O 26 | 30.133 | 58.0 | 30.059 | 60.2 | 55 | 55.6 | 59.2 | 53.2 | 59.7 | 0.216 | SE | Overcast and foggy—small rain. | | H 27 | 29.744 | 56.0 | 29.620 | 59.1 | 54 | 53.8 | 58.8 | 51.7 | 59.0 | ESE | Fine—hazy. | | O 28 | 29.566 | 57.0 | 29.476 | 51.6 | 51 | 51.6 | 45.9 | 45.9 | 51.6 | N | { A.M. Fine—strong haze. P.M. Cloudy—light showers. } | D 29 | 29.903 | 43.3 | 29.975 | 49.7 | 39 | 42.2 | 49.2 | 37.9 | 49.2 | NNE | Overcast—frequent showers and strong unsteady wind. | | D 30 | 29.959 | 43.7 | 29.833 | 49.3 | 42 | 42.3 | 48.8 | 36.4 | 48.8 | WSW | A.M. Cloudless. P.M. Overcast—hazy. | | O 31 | 29.745 | 50.0 | 29.697 | 52.6 | 49 | 49.4 | 51.6 | 41.7 | 51.6 | NNW | Cloudy and hazy. | | Mean | 29.779 | 55.6 | 29.760 | 58.3 | 52.8 | 53.3 | 57.1 | 49.2 | 58.5 | Sum | 2,267 | Monthly Mean of the Barometer, corrected for Capillarity and reduced to 32° Fahr. 9 A.M. 29.722 3 P.M. 29.696 OBSERVANDA. Height of the Cistern of the Barometer above a Fixed Mark on Waterloo Bridge......................... = 83 feet 2½ in. .......................................................... above the mean level of the Sea (presumed about) ............... = 95 feet. The External Thermometer is 2 feet higher than the Barometer Cistern. Height of the Receiver of the Rain Gauge above the Court of Somerset House ......................... = 79 feet 0 in. The hours of observation are of Mean Time, the day beginning at Midnight. The Thermometers are graduated by Fahrenheit's Scale. The Barometer is divided into inches and decimals. ## METEOROLOGICAL JOURNAL FOR NOVEMBER, 1827. | 1827. Novemb. | 9 o'clock, A.M. | 3 o'clock, P.M. | Dew Point at 9 A.M., degrees of Fahr. | External Thermometer. | Rain, in inches. Read off at 9 A.M. | Direction of the Wind at 9 A.M. | Remarks. | |---------------|-----------------|-----------------|-------------------------------------|----------------------|-----------------------------------|-----------------------------|----------| | | Barom. | Attach. Therm. | Barom. | Fahrenheit. | Self-registering. | Lowest. Highest. | | | y 1 | 29.944 | 42.7 | 30.026 | 46.6 | 33 | 39.7 | 45.0 | 36.0 | 49.8 | NNW | A.M. Fine and cloudless. P.M. Overcast and hazy. | | y 2 | 29.817 | 49.2 | 29.988 | 50.8 | 48 | 50.0 | 50.3 | 39.0 | 50.6 | NNE | Dull and foggy—strong wind. | | o 3 | 30.132 | 44.7 | 30.100 | 48.0 | 40 | 42.8 | 48.6 | 37.0 | 48.8 | WSW | Dull—light clouds—foggy. | | o 4 | 30.199 | 48.8 | 30.141 | 53.0 | 49 | 48.8 | 53.4 | 42.3 | 53.7 | W | Fine—light clouds—brisk wind. | | o 5 | 30.362 | 50.4 | 30.392 | 55.0 | 50 | 49.9 | 55.3 | 46.2 | 55.8 | WSW | Fine—hazy. | | o 6 | 30.327 | 52.9 | 30.281 | 55.0 | 52 | 52.8 | 54.7 | 49.6 | 54.8 | W | Dull—hazy. | | o 7 | 30.205 | 52.2 | 30.180 | 51.4 | 50 | 49.8 | 48.7 | 49.0 | 49.8 | N | Dark—foggy. | | y 8 | 30.109 | 48.1 | 30.088 | 49.4 | 43 | 46.2 | 46.8 | 43.7 | 48.3 | 0.025 | E | Unusually dark—strong haze. | | y 9 | 29.872 | 50.6 | 29.796 | 52.6 | 49 | 49.3 | 52.2 | 45.2 | 52.2 | SSE | Lightly overcast—foggy. | | h 10 | 29.955 | 52.2 | 29.994 | 53.8 | 50 | 50.6 | 52.7 | 48.0 | 52.8 | NW | Overcast and foggy—showery. | | o 11 | 29.963 | 52.3 | 29.944 | 55.0 | 50 | 50.9 | 54.5 | 48.0 | 55.4 | 0.030 | W | Fine and cloudless—light fog. | | o 12 | 30.155 | 48.7 | 30.173 | 51.3 | 43 | 43.2 | 49.6 | 41.9 | 54.2 | WSW | A.M. White fog. P.M. Fine—hazy. | | o 13 | 30.173 | 51.8 | 30.154 | 55.6 | 54 | 54.2 | 58.2 | 42.3 | 58.3 | NNW | Overcast and foggy. | | o 14 | 30.123 | 52.9 | 30.036 | 51.1 | 48 | 47.6 | 44.7 | 46.4 | 47.6 | 0.067 | ESE | A.M. Overcast and foggy. P.M. Fine and nearly cloudless. | | y 15 | 29.779 | 48.2 | 29.657 | 49.8 | 45 | 45.0 | 46.8 | 37.8 | 46.8 | 0.186 | S | Overcast and foggy. Showery. | | y 16 | 29.458 | 50.3 | 29.509 | 50.9 | 47 | 46.9 | 47.7 | 41.5 | 47.7 | 0.041 | ESE | Lowering—light fog. | | h 17 | 29.818 | 46.2 | 29.840 | 50.7 | 45 | 45.2 | 50.0 | 40.7 | 50.0 | 0.055 | E | Strong fog. | | o 18 | 30.074 | 46.8 | 30.089 | 49.3 | 45 | 45.2 | 49.4 | 41.0 | 49.4 | NNE | Strong fog. | | o 19 | 30.260 | 50.7 | 30.225 | 51.3 | 50 | 49.6 | 50.2 | 44.6 | 50.2 | NNE | Strong fog. | | o 20 | 30.185 | 50.2 | 30.088 | 50.0 | 46 | 45.8 | 46.4 | 45.3 | 48.3 | WSW | Overcast and foggy. | | o 21 | 30.211 | 46.8 | 30.159 | 44.3 | 40 | 40.8 | 39.5 | 31.0 | 41.3 | NNE | Hazy—light clouds. | | y 22 | 29.892 | 36.8 | 29.749 | 39.7 | 23 | 30.2 | 36.7 | 27.6 | 36.7 | NW | Overcast and hazy—Light fall of snow at 4 P.M. | | y 23 | 29.666 | 33.1 | 29.574 | 36.7 | 25 | 29.0 | 33.7 | 23.8 | 33.7 | WSW | Overcast and hazy. | | h 24 | 29.787 | 34.2 | 29.893 | 36.8 | 26 | 31.0 | 34.6 | 28.1 | 34.6 | N | Fine and cloudless—hazy. | | o 25 | 29.950 | 35.0 | 29.944 | 37.6 | 34 | 34.3 | 37.2 | 27.2 | 37.8 | SW | Overcast and foggy. Fall of snow early A.M. | | o 26 | 30.285 | 38.9 | 30.333 | 40.8 | 39 | 38.7 | 42.7 | 33.6 | 42.7 | 0.133 | N | Strong fog. | | o 27 | 30.354 | 39.6 | 30.277 | 42.5 | 35 | 34.8 | 43.8 | 33.1 | 43.8 | S | A.M. Dense fog. P.M. Fine and cloudless. | | o 28 | 30.051 | 41.2 | 29.917 | 43.7 | 36 | 38.7 | 44.6 | 33.9 | 44.6 | SSE | A.M. Fine and cloudless. P.M. Overcast—hazy. | | y 29 | 29.363 | 43.7 | 29.443 | 46.0 | 43 | 43.9 | 47.7 | 37.8 | 48.3 | 0.319 | NNW | At 13 A.M. violent wind, continuing 4 hours—Strong fog. P.M. Fine. | | y 30 | 29.512 | 45.6 | 29.494 | 47.7 | 46 | 45.7 | 48.6 | 42.3 | 52.2 | WSW | Foggy—showery. | Mean Mean Mean Mean Mean Mean Mean Mean Sum | Mean | Mean | Mean | Mean | Mean | Mean | Mean | Mean | 0.977 | Monthly Mean of the Barometer, corrected for Capillarity and reduced to 32° Fahr. ............... 29.966 29.945 ### OBSERVANDA. Height of the Cistern of the Barometer above a Fixed Mark on Waterloo Bridge ......................... = 83 feet 2½ in. .......................................................... above the mean level of the Sea (presumed about) ............... = 95 feet. The External Thermometer is 2 feet higher than the Barometer Cistern. Height of the Receiver of the Rain Gauge above the Court of Somerset House ......................... = 79 feet 0 in. The hours of observation are of Mean Time, the day beginning at Midnight. The Thermometers are graduated by Fahrenheit’s Scale. The Barometer is divided into inches and decimals. | Decemb. | 9 o'clock, A.M. | 3 o'clock, P.M. | Dew Point at 9 A.M. in degrees of Fahr. | External Thermometer | Rain, in inches. Read off at 9 A.M. | Direction of the Wind at 9 A.M. | Remarks | |---------|-----------------|-----------------|----------------------------------------|----------------------|----------------------------------|-------------------------------|---------| | 1827 | Barom. | Attach. Ther. | Barom. | Attach. Ther. | Fahrenheit. | Self-registering. | Direction of the Wind at 9 A.M. | Remarks | | | | | | | 9 A.M. | 3 P.M. | | | | | | | | | Lowest. | Highest. | | | | 1 | 29.064 | 49.2 | 28.974 | 51.2 | 49 | 49.4 | 51.0 | 45.2 | 51.8 | 0.110 | SW | Clear—broken clouds—strong wind. | | 2 | 29.136 | 48.5 | 29.186 | 48.8 | 45 | 45.3 | 46.3 | 44.3 | 46.3 | 0.018 | W | Overcast and foggy—showery. | | 3 | 29.700 | 48.3 | 29.775 | 49.0 | 45 | 46.5 | 45.7 | 43.6 | 50.2 | 0.114 | N | Overcast and foggy. | | 4 | 29.798 | 49.2 | 29.847 | 50.4 | 50 | 50.8 | 53.7 | 43.3 | 53.7 | 0.103 | WSW | Overcast and foggy—showery. | | 5 | 29.981 | 51.0 | 29.947 | 53.2 | 51 | 50.8 | 54.7 | 48.6 | 54.7 | 0.016 | WSW | Cloudy—light haze. The clouds forming a peculiar arch of uniform breadth—from NE to SW. P.M. Fine—light clouds. [Cloudless.] | | 6 | 29.845 | 52.1 | 29.998 | 51.6 | 42 | 47.2 | 45.8 | 46.2 | 47.3 | 0.019 | NW | Lightly overcast—hazy. | | 7 | 30.278 | 46.5 | 30.172 | 48.7 | 37 | 37.7 | 44.8 | 35.2 | 49.6 | WSW | Lowering—foggy. | | 8 | 29.871 | 49.3 | 29.923 | 49.9 | 47 | 46.9 | 46.7 | 36.7 | 46.9 | 0.047 | W | Lowering—showery—strong wind. | | 9 | 29.907 | 44.8 | 29.782 | 46.8 | 40 | 40.0 | 46.7 | 35.3 | 51.2 | 0.008 | S | A.M. Cloudless. P.M. Lowering—showery—strong wind. | | 10 | 29.609 | 49.6 | 29.507 | 51.7 | 51 | 51.2 | 52.2 | 39.2 | 52.6 | 0.005 | S | A.M. Dark—very strong fog. P.M. Showery. | | 11 | 29.506 | 50.3 | 29.402 | 51.7 | 46 | 46.1 | 50.6 | 44.2 | 50.7 | 0.005 | SSE | Fine and cloudless. | | 12 | 29.425 | 48.7 | 29.369 | 48.8 | 42 | 42.3 | 44.7 | 41.2 | 45.7 | 0.611 | SW | Lowering—strong wind—showery. | | 13 | 29.492 | 48.5 | 29.607 | 49.3 | 42 | 42.2 | 44.2 | 41.2 | 45.4 | 0.119 | W | Lowering—strong wind—showery. | | 14 | 29.461 | 48.7 | 29.336 | 49.2 | 46 | 46.0 | 48.2 | 38.8 | 50.2 | SSE | Lowering—strong wind—showery. | | 15 | 29.698 | 48.7 | 29.644 | 50.3 | 47 | 46.9 | 50.8 | 42.4 | 53.1 | 0.139 | SSW | Lowering—strong wind—showery. | | 16 | 29.715 | 50.6 | 29.794 | 51.7 | 45 | 45.0 | 46.7 | 44.2 | 50.5 | 0.250 | WSW | Fine and cloudless—light haze. | | 17 | 30.217 | 46.2 | 30.153 | 48.3 | 39 | 39.0 | 45.2 | 37.2 | 50.7 | 0.010 | WSW | Overcast—showery—brisk wind. | | 18 | 29.814 | 50.2 | 29.762 | 51.3 | 51 | 51.2 | 52.3 | 38.2 | 52.8 | 0.053 | S | Lowering—strong boisterous wind—showery. | | 19 | 29.594 | 52.9 | 29.564 | 54.0 | 53 | 53.0 | 53.2 | 51.0 | 54.2 | 0.205 | S var. | A.M. Cloudless. P.M. Overcast. | | 20 | 29.560 | 52.3 | 29.590 | 52.7 | 45 | 46.2 | 46.8 | 45.2 | 47.7 | 0.194 | SW | A.M. Cloudless. P.M. Overcast. | | 21 | 29.700 | 48.7 | 29.615 | 50.0 | 41 | 40.6 | 45.7 | 38.9 | 48.7 | SW | A.M. Cloudless. P.M. Overcast. | | 22 | 29.412 | 49.8 | 29.506 | 51.2 | 48 | 49.0 | 50.8 | 39.9 | 50.8 | 0.028 | SSW | Lowering—strong boisterous wind—showery. | | 23 | 29.849 | 49.2 | 30.073 | 49.7 | 45 | 46.3 | 46.0 | 45.1 | 51.3 | 0.228 | N var. | A.M. Cloudy—brisk wind. P.M. Cloudless. | | 24 | 29.830 | 49.8 | 29.756 | 51.8 | 51 | 51.7 | 54.8 | 41.7 | 54.8 | 0.008 | SW | Dull—light clouds. | | 25 | 30.356 | 47.9 | 30.401 | 49.4 | 42 | 43.4 | 47.2 | 40.1 | 47.2 | 0.005 | WSW | Lightly overcast. | | 26 | 30.479 | 48.8 | 30.466 | 50.3 | 47 | 47.8 | 48.9 | 42.6 | 49.4 | SSW | A.M. Foggy. P.M. Fine—light clouds. | | 27 | 30.435 | 48.7 | 30.431 | 50.3 | 47 | 46.7 | 50.3 | 43.3 | 50.3 | SSW | Fine—lightly overcast. | | 28 | 30.696 | 46.8 | 30.657 | 47.0 | 39 | 39.6 | 41.8 | 38.2 | 41.8 | N | Strong fog. | | 29 | 30.556 | 43.9 | 30.477 | 44.2 | 35 | 35.3 | 37.1 | 33.9 | 37.1 | WSW | Strong fog. | | 30 | 30.361 | 41.6 | 30.288 | 42.8 | 36 | 36.7 | 41.0 | 30.8 | 41.0 | ESE | Lightly overcast and foggy. | | 31 | 29.925 | 42.1 | 29.715 | 43.3 | 39 | 38.8 | 43.8 | 35.8 | 46.2 | SSE | A.M. Fine. P.M. Overcast—showery. | Monthly Mean of the Barometer, corrected for Capillarity and reduced to 32° Fahr. \[ \text{Mean} = 29.847 \] \[ \text{Mean} = 48.5 \] \[ \text{Mean} = 29.829 \] \[ \text{Mean} = 49.6 \] \[ \text{Mean} = 44.6 \] \[ \text{Mean} = 45.1 \] \[ \text{Mean} = 47.7 \] \[ \text{Mean} = 41.0 \] \[ \text{Mean} = 49.1 \] \[ \text{Sum} = 2,290 \] OBSERVANDA. Height of the Cistern of the Barometer above a Fixed Mark on Waterloo Bridge = 83 feet 2½ in. Above the mean level of the Sea (presumed about) = 95 feet. The External Thermometer is 2 feet higher than the Barometer Cistern. Height of the Receiver of the Rain Gauge above the Court of Somerset House = 79 feet 0 in. The hours of observation are of Mean Time, the day beginning at Midnight. The Thermometers are graduated by Fahrenheit's Scale. The Barometer is divided into inches and decimals.