Abstract of the Results of the Hourly Meteorological Observations taken at the Surveyor General's Office, Calcutta, in the month of December, 1861. MONTHLY RESULTS. Inches Mean height of the Barometer for the month, 30.008 Max. height of the Barometer occurred at 10 A. M. on the 6th, 30.164 Min. height of the Barometer occurred at 4 P. M. on the 16th, 29.850 0.314 30.077 Ditto ditto Min. ditto, 29.955 Mean daily range of the Barometer during the month, Mean daily range of the Temperature during the month, 14.3 Mean Wet Bulb Thermometer for the month,.. 61.7 Mean Dry Bulb Thermometer above Mean Wet Bulb Thermometer, 4.8 Mean Dry Bulb Thermometer above computed Mean Dew-point, Additional Weight of Vapour required for complete saturation, Abstract of the Results of the Hourly Meteorological Observations in the month of December, 1861. MONTHLY RESULTS. Table showing the number of days on which at a given hour any particular wind Abstract of the Results of the Hourly Meteorological Observations taken at the Surveyor General's Office, Calcutta, in the month of January, 1862. Latitude 22° 33' 1" North. Longitude 88° 20′ 34′′ East. Feet. Height of the Cistern of the Standard Barometer above the Sea-level, 18.11 Daily Means, &c. of the Observations and of the Hygrometrical elements The Mean height of the Barometer, as likewise the Mean Dry and Wet Bulb Thermometers are derived from the twenty-four hourly Observations made during the day. |