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 July and August, 1836 | Date | Barometer | Attach. Therm. | Barometer | Attach. Therm. | Dew at 9 A.M. in degrees of Fahr. | External Thermometer | |------|-----------|----------------|-----------|----------------|----------------------------------|---------------------| | | | | | | | | | | | | | | | | | | | | | | | | ### Remarks - **A.M.** Thick haze. P.M. Fine and cloudless. Evening, Cloudy. - **SE** Fine—light clouds and wind. Evening, Fine and clear. - **SW** Fine—light clouds and wind. Evening, Fine and clear. - **SSW** Fine—light clouds and wind. Evening, Cloudy. --- ### Means - **Barometer corrected for Capillarity and reduced to 32° Fahr.** --- *The observations for this month were not taken by the Assistant Secretary on account of absence.* ## METEOROLOGICAL JOURNAL FOR SEPTEMBER AND OCTOBER, 1836. ### Barometer Readings | 9 o'clock, A.M. | 3 o'clock, P.M. | |-----------------|-----------------| | Barom. | Attach. Therm. | Barom. | Attach. Therm. | | 1836. | | | | | T 1 | 29.816 | 69.8 | 29.794 | 69.4 | 57 | 66.4 | 68.5 | 56.2 | 69.6 | SW | | F 2 | 29.768 | 65.4 | 29.724 | 66.4 | 57 | 60.3 | 59.6 | 54.4 | 63.5 | SW var. | | S 3 | 29.959 | 63.3 | 29.829 | 66.4 | 52 | 57.1 | 63.3 | 46.9 | 64.2 | .169 | | O 4 | 29.836 | 61.8 | 29.421 | 68.0 | 55 | 61.8 | 66.9 | 54.0 | 68.0 | .463 | | M 5 | 29.560 | 62.7 | 29.633 | 66.2 | 54 | 56.4 | 62.4 | 53.5 | 62.5 | .133 | | T 6 | 29.360 | 64.3 | 29.309 | 65.2 | 54 | 56.3 | 61.4 | 50.9 | 61.7 | .091 | | W 7 | 29.641 | 60.2 | 29.712 | 63.3 | 52 | 53.7 | 59.8 | 51.7 | 60.5 | .158 | | F 8 | 29.780 | 60.0 | 29.732 | 63.6 | 53 | 55.9 | 63.0 | 52.0 | 63.6 | NW | | F 9 | 29.746 | 59.7 | 29.802 | 62.2 | 53 | 57.0 | 53.8 | 51.9 | 62.5 | NWW | | S 10 | 29.792 | 57.3 | 29.831 | 60.9 | 50 | 53.6 | 53.6 | 46.5 | 56.8 | .272 | | O 11 | 30.025 | 56.8 | 29.998 | 58.8 | 46 | 50.6 | 51.8 | 42.4 | 56.7 | .050 | | M 12 | 30.052 | 56.2 | 30.033 | 59.0 | 50 | 54.5 | 55.7 | 49.5 | 57.2 | .122 | | T 13 | 30.005 | 57.9 | 30.069 | 61.2 | 51 | 55.8 | 56.7 | 51.7 | 58.3 | NE | | W 14 | 30.117 | 56.6 | 30.130 | 60.0 | 52 | 55.8 | 56.6 | 48.4 | 59.0 | .022 | | T 15 | 30.170 | 57.6 | 30.182 | 60.0 | 52 | 55.2 | 59.4 | 47.4 | 60.2 | NNE | | F 16 | 30.075 | 56.0 | 30.058 | 59.3 | 51 | 53.7 | 58.2 | 50.0 | 58.4 | NE var. | | S 17 | 30.077 | 57.5 | 30.045 | 59.6 | 50 | 56.4 | 58.6 | 49.5 | 60.6 | .088 | | O 18 | 30.002 | 57.2 | 29.999 | 60.3 | 52 | 54.8 | 56.7 | 50.5 | 58.5 | .141 | | M 19 | 29.974 | 55.3 | 29.942 | 58.6 | 48 | 51.9 | 56.8 | 48.3 | 58.2 | NW | | T 20 | 29.989 | 54.9 | 29.954 | 59.4 | 48 | 51.6 | 58.8 | 48.7 | 59.0 | W | | W 21 | 30.152 | 53.5 | 30.176 | 57.1 | 45 | 48.4 | 51.9 | 42.6 | 52.3 | .091 | | T 22 | 30.277 | 51.6 | 30.235 | 56.2 | 43 | 47.4 | 56.3 | 40.7 | 57.8 | W | | F 23 | 29.958 | 55.3 | 29.897 | 58.0 | 52 | 57.8 | 62.6 | 46.7 | 63.2 | .044 | | S 24 | 30.152 | 59.6 | 30.107 | 61.6 | 54 | 60.0 | 66.4 | 53.9 | 66.4 | .161 | | O 25 | 30.178 | 60.6 | 30.180 | 63.8 | 55 | 59.9 | 66.3 | 53.9 | 66.7 | SW | | M 26 | 30.144 | 61.5 | 30.053 | 65.7 | 57 | 60.4 | 67.3 | 57.9 | 67.9 | SSE | | T 27 | 29.837 | 63.4 | 29.836 | 66.3 | 59 | 62.3 | 64.3 | 58.6 | 65.2 | SSE | | W 28 | 29.683 | 62.4 | 29.592 | 63.9 | 57 | 58.6 | 57.4 | 52.2 | 62.6 | .047 | | T 29 | 29.272 | 59.3 | 29.316 | 61.8 | 54 | 54.4 | 59.2 | 51.9 | 58.9 | .436 | | S 30 | 29.426 | 58.3 | 29.477 | 59.6 | 49 | 52.5 | 52.3 | 46.6 | 54.6 | .255 | ### Mean Barometer Reading | MEANS | 29.877 | 59.2 | 29.699 | 62.1 | 52.1 | 56.0 | 59.6 | 50.3 | 61.2 | 2.773 | ### REMARKS - **SW**: Fine—nearly cloudless—light wind. Evening, Cloudy. - **SW var.**: A.M., Cloudy—very light rain and wind. P.M., Fine—light clouds. Evening, Fine and clear. - **S**: A.M., Overcast—very heavy rain early. P.M., Overcast—light rain and wind. Evening, Overcast—light rain and wind. - **SSW**: A.M., Overcast—very light rain and wind. P.M., Overcast—light clouds and wind. Evening, Overcast—light rain and wind. - **SE var.:** A.M., Overcast—very light rain and wind. P.M., Overcast—light rain and wind. Evening, Overcast—light rain and wind. - **SSW var.:** A.M., Overcast—very light rain and wind. P.M., Overcast—light clouds and wind. Evening, Overcast—light rain and wind. - **SSE**: A.M., Overcast—very light rain and wind. P.M., Overcast—light rain and wind. Evening, Overcast—light rain and wind. - **SSE var.:** A.M., Overcast—very light rain and wind. P.M., Overcast—light rain and wind. Evening, Overcast—light rain and wind. - **SSW**: A.M., Overcast—very light rain and wind. P.M., Overcast—light clouds and wind. Evening, Overcast—light rain and wind. ### Additional Notes - **Foggy**: P.M., Overcast—clouds and wind. Ev. Foggy. - **Cloudy**: Evening, Fine and clear. - **Fine**: Evening, Fine and clear. - **Cloudy**: Evening, Fine and clear. - **Cloudy**: Evening, Fine and clear. - **Cloudy**: Evening, Fine and clear. - **Cloudy**: Evening, Fine and clear. - **Cloudy**: Evening, Fine and clear. - **Cloudy**: Evening, Fine and clear. - **Cloudy**: Evening, Fine and clear. - **Cloudy**: Evening, Fine and clear. - **Cloudy**: Evening, Fine and clear. - **Cloudy**: Evening, Fine and clear. - **Cloudy**: Evening, Fine and clear. - **Cloudy**: Evening, Fine and clear. - **Cloudy**: Evening, Fine and clear. - **Cloudy**: Evening, Fine and clear. ### Summary Mean of Barometer, corrected for Capil. 9 A.M. 3 P.M. Variability and reduced to 32° Fahr. ……… 29.800 29.783 ## METEOROLOGICAL JOURNAL FOR NOVEMBER AND DECEMBER, 1836. | Date | Barom. | Attach. Therm. | Barom. | Attach. Therm. | Dew Point at 9 A.M., in degrees of Fahr. | External Thermometer. | Rain, in inches, Head off at 9 A.M. | Direction of the Wind at 9 A.M. | REMARKS | |------|--------|----------------|--------|----------------|------------------------------------------|-----------------------|----------------------------------|-------------------------------|---------| | T | 30.099 | 37.6 | 30.008 | 40.4 | 32 | 35.2 | 41.6 | 31.7 | SSW | A.M. Fine—lt. clouds & wind, P.M. Overcast—lt. rain & wind. | | W | 29.942 | 42.5 | 29.895 | 44.9 | 39 | 47.7 | 52.5 | 34.8 | SSW | Overcast—very light rain and wind throughout the day. | | T | 29.840 | 44.8 | 29.679 | 48.2 | 39 | 44.8 | 51.7 | 42.3 | SW | Overcast—deposition, 53 P.M., Heavy storm of hail and rain. | | F | 29.570 | 45.4 | 29.451 | 47.0 | 40 | 44.5 | 54.2 | 40.9 | A.M. Overcast—light wind, P.M. Overcast—light rain. | | S | 29.140 | 45.6 | 29.287 | 47.2 | 40 | 45.4 | 44.9 | 42.8 | SW | A.M. Overcast—wind & wind, P.M. Fine—nearly cloudless, Evening, Fine and clear. | | O | 29.459 | 42.1 | 29.439 | 44.6 | 36 | 36.4 | 43.8 | 34.0 | WSW | A.M. Fine and cloudless—light wind, P.M. Cloudy—lt. wind, (Sharp frost during the night.) | | M | 29.631 | 40.0 | 29.722 | 42.8 | 35 | 35.8 | 42.7 | 32.3 | WSW | 1 Evening, Fine and clear. | | T | 29.978 | 38.7 | 30.049 | 40.7 | 33 | 33.6 | 40.6 | 31.3 | SW | A.M. Light fog and deposition (White frost), P.M. Fine and cloudless—light rain. | | O | 30.010 | 41.2 | 29.909 | 45.2 | 36 | 45.8 | 48.6 | 33.5 | SSE | A.M. Lightly overcast, P.M. Cloudy—lt. rain, Ev. Overcast—lt. rain. | | T | 29.614 | 46.3 | 29.621 | 49.0 | 43 | 50.4 | 50.2 | 45.8 | SSE | A.M. Overcast—cloudy (Heavy rain during the night.), P.M. Overcast—light rain. | | F | 29.390 | 47.4 | 29.429 | 49.3 | 44 | 50.5 | 49.4 | 42.6 | E | Overcast—light rain and wind throughout the day. | | S | 29.821 | 46.9 | 29.863 | 48.0 | 41 | 41.4 | 46.2 | 40.2 | A.M. Thick fog—deposition, P.M. Overcast—light wind. | | O | 29.687 | 49.3 | 29.627 | 51.5 | 45 | 52.2 | 54.5 | 40.7 | SW | A.M. Overcast—light rain and wind, (Very high wind throughout the night.) P.M. Ovct.—lt. rain with h. wind. | | M | 29.656 | 49.4 | 29.699 | 50.7 | 44 | 42.7 | 46.4 | 41.0 | SE var. | Ev. Fine & clear. | | T | 30.011 | 42.5 | 30.035 | 47.6 | 41 | 38.4 | 46.3 | 35.9 | SW | Fine & cloudless—lt. wind throughout the day, Ev. Fine & clear. | | W | 29.964 | 47.3 | 29.800 | 49.4 | 42 | 46.7 | 50.2 | 37.9 | SW | A.M. Cloudy—lt. wind, P.M. Ovct.—very lt. rain, Ev. Cloudy, (Sharp frost during the night.) | | Nov | 29.475 | 48.2 | 29.436 | 49.2 | 43 | 46.7 | 47.4 | 45.2 | SW | A.M. Fine—nearly cloudless throughout the day, Ev. Fine & clear. | | F | 29.103 | 46.7 | 29.172 | 48.0 | 42 | 40.8 | 43.7 | 39.8 | SW | A.M. Fine—nearly cloudless throughout the day, Ev. Fine & clear. | | S | 29.253 | 42.5 | 29.186 | 44.6 | 38 | 37.4 | 42.0 | 34.4 | SW | A.M. Fine—nearly cloudless throughout the day, Ev. Fine & clear. | | O | 29.784 | 42.2 | 29.917 | 43.7 | 37 | 38.7 | 42.8 | 36.9 | SW | A.M. Fine—nearly cloudless throughout the day, Ev. Fine & clear. | | M | 30.119 | 40.0 | 30.071 | 41.2 | 34 | 36.7 | 38.2 | 32.6 | SW | A.M. Fine—nearly cloudless throughout the day, Ev. Fine & clear. | | T | 29.960 | 41.5 | 29.889 | 41.8 | 37 | 38.8 | 39.2 | 33.8 | SW | A.M. Fine—nearly cloudless throughout the day, Ev. Fine & clear. | | W | 29.272 | 43.7 | 29.377 | 45.2 | 38 | 44.6 | 44.8 | 37.9 | SW | A.M. Fine—nearly cloudless throughout the day, Ev. Fine & clear. | | T | 29.479 | 41.4 | 29.528 | 44.8 | 36 | 38.5 | 43.8 | 36.6 | SW | A.M. Fine—nearly cloudless throughout the day, Ev. Fine & clear. | | F | 29.732 | 40.2 | 29.558 | 41.3 | 35 | 35.7 | 39.8 | 33.5 | SW | A.M. Fine—nearly cloudless throughout the day, Ev. Fine & clear. | | S | 29.356 | 39.8 | 29.274 | 41.4 | 36 | 39.7 | 44.0 | 34.5 | SW | A.M. Fine—nearly cloudless throughout the day, Ev. Fine & clear. | | O | 29.530 | 44.9 | 29.534 | 46.8 | 40 | 44.5 | 51.4 | 39.0 | SW | A.M. Fine—nearly cloudless throughout the day, Ev. Fine & clear. | | M | 29.267 | 51.8 | 29.803 | 54.0 | 48 | 55.4 | 56.2 | 49.2 | SW | A.M. Fine—nearly cloudless throughout the day, Ev. Fine & clear. | | T | 29.854 | 54.2 | 29.384 | 54.3 | 51 | 56.8 | 49.4 | 52.2 | SW | A.M. Fine—nearly cloudless throughout the day, Ev. Fine & clear. | | W | 29.516 | 51.6 | 29.536 | 51.8 | 46 | 48.4 | 49.3 | 47.5 | SW | A.M. Fine—nearly cloudless throughout the day, Ev. Fine & clear. | ### MEANS | Date | Barom. | Attach. Therm. | Barom. | Attach. Therm. | Dew Point at 9 A.M., in degrees of Fahr. | External Thermometer. | Rain, in inches, Head off at 9 A.M. | Direction of the Wind at 9 A.M. | REMARKS | |------|--------|----------------|--------|----------------|------------------------------------------|-----------------------|----------------------------------|-------------------------------|---------| | | 29.620 | 44.6 | 29.626 | 46.5 | 39.7 | 43.1 | 46.3 | 38.7 | SW | Mean of Barometer, corrected for Capil. 9 A.M., 3 P.M., P.M. clarity and reduced to 32° Fahr. | --- **SUMMARY** - **MEANS** - Barom.: 29.620 - Attach. Therm.: 44.6 - Barom.: 29.626 - Attach. Therm.: 46.5 - Dew Point at 9 A.M.: 39.7 - External Thermometer: 43.1 - Rain, in inches: 46.3 - Direction of the Wind: 38.7 - SW --- **MEAN OF BAROMETER, CORRECTED FOR CAPILARITY AND REDUCED TO 32° FAHR.** - **MEANS** - Barom.: 29.586 - Attach. Therm.: 29.587