Meteorological Observations 



Abstract of the Results of the Hourly Meteorological Observations 



taken at the Surveyor General's Office, Calcutta, 



in the month of January 1875. 



Hourly Means, &c. of the Observations and of the Hygrometrical elements 



dependent thereon. 



Hour 



Kg? 



JRange of the Barometer 



for each hour during 



the month. 



Max. 



Min. 



Diff. 



Jb ° 



p a 

 s « 



Bange of tli e Tempera- 

 ture for each hour 

 during the month. 



Max. 



Min. 



Diff. 





Inches. 



Inches. 



Inches. 



Inches. 







Mid- 













night. 



29.966 



30.078 



29.757 



0.321 



63.6 



1 



.959 



.071 



.751 



.320 



63.0 



2 



.951 



.062 



.738 



.324 



62.5 



3 



.943 



.053 



.730 



.323 



61.9 



4 



.939 



.059 



.726 



.333 



61.4 



5 



.947 



.054 



.735 



.319 



61.0 



6 



.962 



.072 



.751 



.321 



60.5 



7 



.981 



.092 



.792 



.300 



60.1 



8 



30.005 



.114 



.824 



.290 



61.4 



9 



.032 



.146 



.856 



.290 



64.6 



10 



.036 



.140 



.879 



.261 



67.7 



11 



.009 



.121 



.868 



.253 



70.0 



Noon. 



29.990 



.095 



■ .824 



.271 



71.9 



1 



.961 



.067 



.787 



.280 



73.0' 



2 



.937 



.041 



.762 



.279 



74.0 



3 



.925 



.025 



.732 



.293 



74.2 



4 



.922 



.030 



.743 



.287 



73.0 



5 



.929 



.045 



.735 



.310 



71.8 



6 



.939 



.052 



.731 



.321 



69.5 



7 



.953 



.069 



.747 



.322 



67.9 



8 



.966 



.089 



.761 



.325 



66.7 



9 



.974 



.094 



.754 



• .340 



65.8 



10 



.976 



.098 



.765 



.333 



65.0 



11 



.973 



.093 



.765 



.328 



64.2 



71.0 

 70.5 

 70.0 

 69.0 

 68.5 

 68.0 

 67.5 

 65.7 

 68.0 

 72.0 

 75.4 

 76.0 



79.0 

 78.8 

 79.0 

 80.0 

 78.0 

 76.2 

 73.5 

 72.7 

 71.7 

 71.5 

 71.2 

 71.6 



57.2 

 56.7 

 56.1 

 55.5 

 55.0 

 54.5 

 54.1 

 53.8 

 55.7 

 60.4 

 61.7 

 63.5 



63.5 

 63.3 

 61.5 

 61.0 

 61.0 

 60.5 

 60.0 

 60.0 

 60.5 

 60.2 

 58.8 

 5S.0 



13.8 

 13.8 

 13.9 

 13.5 

 13.5 

 13.5 

 13.4 

 11.9 

 12.3 

 11.6 

 13.7 

 12.5 



15.5 

 15.5 

 17.5 

 19.0 

 17.0 

 15.7 

 13.5 

 12.7 

 11.2 

 11.3 

 12.4 

 13.6 



The Mean Height of the Barometer, as likewise the Dry and Wet Bulb. 

 Thermometer Means are derived from the observations made at the several 

 hours during the mouth. 



