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. 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. 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 JANUARY AND FEBRUARY, 1835. | Time | Barom. | Attach. Therm. | Barom. | Attach. Therm. | Dew Point | External Thermometer | Rain in inches | Direction of the Wind at 9 A.M. | REMARKS | |------|--------|----------------|--------|----------------|----------|----------------------|---------------|---------------------------------|---------| | 9 o'clock, A.M. | 3 o'clock, P.M. | 9 A.M. | 3 P.M. | Lowest | Highest | Self-registering | Read off at 9 A.M. | | | T 1 | 30.107 | 51.8 | 36.398 | 51.9 | 48 | 47.9 | 46.0 | 46.3 | 48.6 | S | A.M. Light fog and rain.—A.M. Overcast—light haze. P.M. Fine and clear. | | F 2 | 30.794 | 46.4 | 36.819 | 47.3 | 35 | 40.2 | 42.4 | 38.9 | 41.8 | NE | Fine light haze and wind. P.M. Fine light clouds and wind. | | S 3 | 30.782 | 44.7 | 36.725 | 45.4 | 32 | 38.9 | 40.6 | 36.8 | 40.5 | NE | Fine light haze and wind. Evening, light fog. | | O 4 | 30.622 | 40.9 | 36.570 | 41.3 | 29 | 32.9 | 35.2 | 30.2 | 34.5 | E | Thick fog.—P.M. Light haze. | | M 5 | 30.564 | 38.2 | 36.556 | 40.4 | 32 | 34.3 | 40.3 | 30.6 | 32.4 | E | Thick fog.—P.M. Light haze. | | T 6 | 30.552 | 37.3 | 36.475 | 37.9 | 32 | 31.6 | 34.7 | 29.0 | 33.3 | E | Thick fog.—P.M. Light haze. | | W 7 | 30.307 | 35.0 | 36.212 | 34.3 | 27 | 27.9 | 29.9 | 25.8 | 28.5 | E | Sharp frost—light fog and wind. | | T 8 | 30.128 | 33.2 | 36.063 | 34.6 | 29 | 30.0 | 33.7 | 25.0 | 35.8 | S | Light cloudy day.—A.M. Overcast. | | F 9 | 29.875 | 36.7 | 29.703 | 38.6 | 32 | 37.2 | 44.0 | 28.4 | 47.5 | SSW | A.M. Fine light clouds with light brick wind. P.M. Overcast—drizzling rain. | | S 10 | 29.825 | 40.6 | 29.841 | 42.2 | 36 | 38.9 | 43.8 | 35.8 | 46.9 | S var. | A.M. Lightly overcast—light unsteady wind. P.M. Light rain. | | O 11 | 29.800 | 44.6 | 29.853 | 46.2 | 42 | 46.8 | 50.3 | 37.2 | 49.6 | SW | A.M. Fine light clouds and wind. P.M. Lightly overcast—cloudy—light wind. | | M 12 | 29.930 | 46.4 | 29.918 | 47.8 | 44 | 47.8 | 49.0 | 45.7 | 49.7 | ESE | A.M. Fine light clouds and wind. P.M. Lightly overcast—overcast—very light rain. | | T 13 | 29.707 | 46.3 | 29.594 | 46.7 | 40 | 40.2 | 45.4 | 39.8 | 45.3 | SW | A.M. Lightly cloudy—P.M. Fine light clouds and wind.—High wind throughout the night. | | W 14 | 29.479 | 47.2 | 29.473 | 48.8 | 42 | 45.7 | 49.4 | 39.9 | 48.8 | SW var. | Overcast—very light wind. | | T 15 | 29.656 | 48.7 | 29.693 | 49.8 | 43 | 46.6 | 48.3 | 44.2 | 47.8 | SW | Fine light clouds and wind. Evening, sharp frost. | | F 16 | 29.091 | 48.8 | 29.197 | 49.6 | 44 | 47.2 | 44.2 | 44.2 | 49.6 | SW | Fine light clouds and wind. Evening, sharp frost. | | S 17 | 29.598 | 43.2 | 29.685 | 44.6 | 38 | 35.2 | 40.3 | 31.9 | 39.3 | SW | Fine light clouds and wind. Evening, sharp frost. | | O 18 | 29.808 | 39.2 | 29.604 | 40.3 | 27 | 31.5 | 36.6 | 27.8 | 42.2 | SW var. | Fine light clouds and wind. Evening, sharp frost. | | M 19 | 29.101 | 40.7 | 29.172 | 41.6 | 35 | 39.9 | 38.8 | 29.5 | 42.3 | SW | Fine light clouds and wind. Evening, sharp frost. | | T 20 | 30.083 | 37.3 | 30.091 | 38.0 | 26 | 32.0 | 33.5 | 30.5 | 32.4 | NE var. | Fine light clouds and wind. Evening, sharp frost. | | W 21 | 30.328 | 34.7 | 30.253 | 35.7 | 17 | 27.4 | 31.9 | 24.9 | 35.7 | NE | Fine light clouds and wind. Evening, sharp frost. | | T 22 | 30.134 | 36.6 | 30.220 | 38.4 | 33 | 37.2 | 39.2 | 25.3 | 38.6 | NE | Fine light clouds and wind. Evening, sharp frost. | | F 23 | 30.344 | 38.6 | 30.301 | 39.9 | 32 | 38.8 | 41.4 | 33.8 | 44.2 | NE | Fine light clouds and wind. Evening, sharp frost. | | S 24 | 30.115 | 41.7 | 30.154 | 43.8 | 40 | 45.4 | 47.6 | 37.2 | 47.6 | NE | Fine light clouds and wind. Evening, sharp frost. | | O 25 | 30.200 | 43.6 | 30.214 | 45.4 | 39 | 45.3 | 49.9 | 37.2 | 49.7 | NE | Fine light clouds and wind. Evening, sharp frost. | | M 26 | 30.332 | 45.6 | 30.332 | 47.4 | 41 | 47.7 | 48.7 | 42.8 | 49.7 | NE | Fine light clouds and wind. Evening, sharp frost. | | T 27 | 30.425 | 46.2 | 30.406 | 47.3 | 37 | 44.5 | 46.6 | 40.6 | 45.9 | NE | Fine light clouds and wind. Evening, sharp frost. | | O 28 | 30.362 | 45.3 | 30.279 | 46.2 | 37 | 40.9 | 47.0 | 38.6 | 41.7 | NE | Fine light clouds and wind. Evening, sharp frost. | | T 29 | 30.188 | 45.0 | 30.123 | 46.9 | 38 | 42.0 | 48.2 | 39.8 | 47.7 | NE | Fine light clouds and wind. Evening, sharp frost. | | F 30 | 30.087 | 46.3 | 30.035 | 48.3 | 41 | 44.2 | 46.4 | 40.8 | 47.6 | NE | Fine light clouds and wind. Evening, sharp frost. | | S 31 | 30.000 | 44.0 | 30.047 | 45.5 | 36 | 38.6 | 42.0 | 35.0 | 43.6 | NE | Fine light clouds and wind. Evening, sharp frost. | **Means...** Barom.: 30.075 Attach. Therm.: 42.4 Dew Point: 30.065 External Thermometer: 43.6 Self-registering: 35.6 Rain: 39.5 Direction of the Wind: 42.4 Sum.: 43.1 --- **Means...** Barom.: 29.831 Attach. Therm.: 45.0 Dew Point: 29.845 External Thermometer: 47.2 Self-registering: 36.3 Rain: 42.3 Direction of the Wind: 47.1 Sum.: 37.1 --- **Means...** Barom.: 29.796 Attach. Therm.: 29.803 | Date | Bar. 9 A.M. | Attab. Therm. | Bar. 3 P.M. | Attach. Therm. | Dew Point at 9 A.M. in degrees of Fahr. | External Thermometer | |------|------------|--------------|-------------|---------------|----------------------------------------|---------------------| | | | | | | | SW | | | | | | | | SSW | | | | | | | | A.M. Fine—light clouds and wind. P.M. Overcast—light rain. | | | | | | | | ENE | | | | | | | | NE | | | | | | | | SW var. | | | | | | | | NW var. | **REMARKS** - Overcast-light rain and snow. - Evening, cloudy. ``` +-------------------+-------------------+-------------------+-------------------+-------------------+-------------------+ | Remarks | | | | | | +-------------------+-------------------+-------------------+-------------------+-------------------+-------------------+ | Overcast—deposition—light wind. Evening, cloudy. | | | | | | | A.M. Fine—light clouds—high wind. P.M. Fine—nearly cloudless. | | | | | | | A.M. Fine—light clouds and wind. P.M. Overcast—rain in places. Evening, overcast very light rain. | | | | | | | Fine and cloudless—the wind. Evening, overcast very light rain. | | | | | | | Fine and cloudless—light haze and wind. Evening, overcast steady rain. | | | | | | ``` **Remarks:** - Fine and cloudless—light rain and wind. Evening, fine clear. - Fine and cloudless—light rain and wind. Evening, fine clear. - Fine and cloudless—light rain and wind. Evening, fine and clear. - Fine and cloudless—light rain and wind. Evening, fine clear. **Means:** ``` +-------------------+-------------------+-------------------+-------------------+-------------------+-------------------+ | | | | | | | | | | | | | | ``` | Date | 9 o'clock, A.M. | 3 o'clock, P.M. | Dew Point | External Thermometer | Rain in inches | Direction of the Wind at 9 A.M. | REMARKS | |------|-----------------|-----------------|-----------|----------------------|---------------|--------------------------------|----------| | | Barom. | Attach. Therm. | Barom. | Attach. Therm. | | | | | | Fahrenheit | Self-registering | Fahrenheit| | | | | | | 9 A.M. | | 9 A.M. | | | | | | | Lowest | Highest | | | | | | | 1835.| F | 29.635 | 50.0 | 29.649 | 53.0 | 46 | 47.4 | 52.3 | 44.6 | 52.6 | .158 | SW | Overcast—very light rain and wind. | | S | 29.647 | 51.7 | 29.626 | 54.6 | 45 | 51.5 | 54.5 | 44.0 | 57.8 | S | A.M. Fine—light clouds. P.M. Overcast—light rain and wind. | | O | 29.770 | 54.2 | 29.804 | 55.5 | 43 | 51.9 | 53.6 | 45.0 | 53.6 | .036 | WNW | Overcast—light wind. | | M | 29.883 | 56.2 | 29.922 | 56.3 | 43 | 52.5 | 54.3 | 44.7 | 59.2 | SW | A.M. Fine—light clouds. P.M. Overcast—light brisk wind. | | T | 30.109 | 54.6 | 30.063 | 57.4 | 44 | 49.5 | 58.5 | 45.0 | 59.7 | NE | Overcast—light rain and wind. | | W | 29.865 | 54.7 | 29.835 | 58.6 | 49 | 49.3 | 61.4 | 48.9 | 62.3 | .133 | S | A.M. Lightly overcast—very light rain. P.M. Fine—light clouds. Evening, Fine and clear. | | T | 29.968 | 60.5 | 30.008 | 60.3 | 48 | 56.6 | 60.9 | 45.6 | 61.2 | SW | A.M. Lightly overcast—clouds and wind. P.M. Cloudy. Evening, Fine and clear. | | F | 30.109 | 60.3 | 30.079 | 61.6 | 51 | 55.4 | 63.5 | 46.0 | 63.9 | SSW | Fine and clear. | | S | 30.004 | 64.3 | 29.913 | 64.7 | 55 | 62.6 | 67.2 | 54.5 | 68.4 | S | Overcast—Evening, Fine and clear. | | O | 29.816 | 63.6 | 29.794 | 65.0 | 49 | 59.8 | 64.8 | 50.0 | 65.6 | SSW | Fine—light clouds. | | M | 29.981 | 64.5 | 29.972 | 64.2 | 50 | 57.0 | 60.6 | 45.7 | 63.7 | SW | A.M. Fine—light clouds. P.M. Cloudy. Evening, Fine and clear. | | T | 29.833 | 59.6 | 29.766 | 63.6 | 50 | 57.2 | 60.8 | 52.4 | 63.6 | .033 | SW | A.M. Fine—lightly cloudy. P.M. Overcast—light rain. | | W | 29.604 | 65.3 | 29.631 | 64.0 | 48 | 59.3 | 61.8 | 50.9 | 63.2 | .097 | SW | Fine—light rain and wind. Even, Overcast—light steady rain. | | T | 29.495 | 55.2 | 29.558 | 56.2 | 47 | 48.9 | 48.4 | 45.4 | 55.0 | 1.033 | SW | A.M. Lightly overcast—light rain. P.M. Overcast—heavy rain. | | F | 29.720 | 56.6 | 29.730 | 58.8 | 47 | 54.5 | 56.5 | 45.2 | 58.6 | .369 | SW | A.M. Lightly overcast—clouds and wind. P.M. Thunder, accompanied by heavy rain. Evening, Fine and clear. | | S | 29.774 | 59.8 | 29.829 | 60.7 | 48 | 55.8 | 63.2 | 47.4 | 63.2 | .183 | SW | Fine—light clouds. Evening, Fine and clear. | | O | 30.004 | 65.5 | 29.976 | 62.2 | 50 | 59.8 | 64.0 | 46.8 | 64.5 | SE var. | Fine—nearly cloudless. | | M | 29.930 | 63.9 | 29.885 | 64.0 | 50 | 65.0 | 70.0 | 48.4 | 72.8 | E | A.M. Fine and cloudless—light haze. P.M. Fine—lightly cloudy. | | T | 29.873 | 63.2 | 29.851 | 65.2 | 52 | 63.9 | 66.6 | 54.2 | 68.7 | E | Fine—light clouds and wind. | | W | 29.942 | 59.9 | 29.976 | 62.4 | 53 | 55.6 | 60.9 | 52.8 | 61.8 | E | Overcast—light rain and wind. | | T | 30.208 | 62.8 | 30.200 | 64.2 | 49 | 56.7 | 61.3 | 50.3 | 62.3 | .047 | E | A.M. Thick haze. P.M. Fine—light clouds and wind. Evening, Fine and clear. | | F | 30.174 | 62.8 | 30.103 | 63.5 | 46 | 55.4 | 65.5 | 47.6 | 66.7 | NNE | Fine—light clouds. Evening, Cloudy. | | S | 30.186 | 64.3 | 30.128 | 66.0 | 53 | 60.7 | 68.2 | 52.6 | 69.6 | .052 | S | Fine—light clouds. Evening, Cloudy. | | O | 30.156 | 66.5 | 30.075 | 66.8 | 56 | 66.6 | 70.4 | 55.7 | 71.4 | SW | A.M. Cloudy. P.M. Fine—light clouds and wind. Evening, Fine and clear. | | M | 29.881 | 64.6 | 29.770 | 66.2 | 50 | 60.6 | 65.2 | 56.0 | 66.4 | SW | Overcast—light rain and wind. | | T | 29.542 | 62.4 | 29.456 | 62.8 | 50 | 55.9 | 58.0 | 48.6 | 58.6 | SW | A.M. Cloudy—light wind. P.M. Overcast—thunder and lightning. | | W | 29.695 | 60.6 | 29.748 | 62.7 | 50 | 55.7 | 59.5 | 46.2 | 61.6 | .097 | SW | Fine—light clouds and wind. Evening, Cloudy. | | T | 29.656 | 58.3 | 29.968 | 61.2 | 49 | 54.8 | 56.0 | 46.2 | 58.7 | .241 | SW | A.M. Cloudy—light wind. P.M. Fine—light clouds and wind. Evening, Fine and clear. | | F | 30.069 | 59.4 | 30.077 | 61.2 | 43 | 54.1 | 58.8 | 43.0 | 59.8 | NE | Fine—light clouds and wind. Evening, Cloudy. | | S | 30.103 | 59.5 | 30.061 | 60.0 | 40 | 52.2 | 57.7 | 41.7 | 58.0 | NE | A.M. Cloudy—light wind and wind. P.M. Fine—light clouds and wind. Evening, Fine and clear. | | O | 30.045 | 58.3 | 29.966 | 60.8 | 42 | 54.7 | 60.4 | 43.8 | 64.2 | N | Overcast—light rain. | **Means:** 29.893 | 60.1 | 29.885 | 61.4 | 48.3 | 56.4 | 60.8 | 48.0 | 62.5 | 2.479 Mean of Barometer, corrected for Capilary and reduced to 32° Fahr. ..... 29.813 | 29.801 --- **REMARKS:** - **SW**: Overcast—light rain and wind. - **S**: A.M. Fine—light clouds. P.M. Overcast—light rain and wind. - **ESE**: A.M. Overcast—light rain. P.M. Fine—light clouds and wind. Evening, Cloudy. - **N**: Lightly overcast—light rain and wind. - **SW**: Overcast—light wind. Evening, Fine and clear. - **NE**: Fine and cloudless—light wind and wind. - **S**: Fine—light clouds and haze, with distant thunder. Evening, Fine and clear. - **SW**: Fine—light clouds and wind. Evening, Fine and clear. - **E**: Fine and cloudless—light wind. - **NW**: Fine light clouds and wind. Evening, Overcast—heavy rain. - **NE**: Fine—light clouds—brisk wind. Evening, Overcast—light shower, with distant thunder. Evening, Fine and clear. - **SW**: Fine—light clouds. Evening, Cloudy. - **SW**: A.M. Lightly overcast. P.M. Fine light clouds and wind. Evening, Cloudy. - **SW**: A.M. Cloudy—light wind—P.M. Fine—nearly cloudless. - **SW**: Fine—light clouds and wind. Evening, Overcast—heavy rain and wind. - **SW**: A.M. Overcast—light rain—brisk wind. P.M. Heavy rain—very high wind. Evening, Overcast—light continued rain. - **W**: Overcast—light rain throughout the day. --- **Means:** 30.086 | 68.3 | 30.053 | 68.5 | 55.1 | 63.9 | 68.8 | 54.6 | 70.7 | 2.198 Mean of Barometer, corrected for Capilary and reduced to 32° Fahr. ..... 29.981 | 29.948