260 



TRANSACTIONS OF THE 



February Weather, from 1878 to 1887. 



This table gives the mean average barometer, temperature, relative 

 humidity, and dew point; the highest and lowest barometer and tempera- 

 ture, with the monthly range of each; the greatest and least daily range 

 of temperature; the average maximum, minimum, and range of tempera- 

 ture; prevailing wind; total rainfall; total and maximum velocity of wind, 

 and the direction at time of maximum velocity; clear, fair, cloudy, and 

 foggy days, and total number of days rain fell; solar and lunar halos; 

 light and killing frosts; days snow fell, and number of days the minimum 

 temperature was below 32°; along with the highest, lowest, and range of 

 water in the river during the month: 



Febiu'aiiy: 



1878. 1879. 



1880. 1881 



1882. 1883. 1884. 



1885. 1886. 



1S87. 



Average barometer 



Highest barometer 



Lowest barometer 



Monthly range of barom- 

 eter 



Average temperature 



Highest temperature 



Lowest temperature 



Monthly range of tempera- 

 ture 



Greatest daily range of 



temperature 



Least daily range of tem- 

 perature 



Average maximum tem- 

 perature 



Average minimum tem- 

 perature 



Mean daily range of tem- 

 perature 



Average humidity 



Averflge dew point 



Prevailing wind- 



Total precipitation . 



Total velocity of wind 



Maximum velocity of wind, 

 Direction at time of max- ) 



iiiiuni velocity J 



Clear days 



Fair days 



Cloudy days 



Foggy days 



Days rain fell 



Thunder and lightning 



storms 



Solar halos 



Lunar halos 



Light frosts 



Killing frosts 



Days snow fell 



Davs minimum tempera- 

 ture below 32°. 



Highest river 



Lowest river 



Monthly range of river 



29.96 '30.10 



30.3(5 

 29.50 



0.86 

 51.3 

 61.0 

 40.0 



21.0 



16.0 



5.0 



56.3 



45.6 



10.7 



80.0 



S.E. 



8.04 

 5.359 

 36 



S.E. 



5 



8 

 15- 





 17 





 

 

 

 

 







26.0 



21.9 



4.1 



:;h.::h 

 29.77 



0.53 

 55.0 

 73.5 

 33.0 



30.19 

 30.48 

 29.76 



0.72 

 46.0 

 64.0 

 30.0 



40.5 34.0 



28.5 



5.5 



63.1 



45.6 



17.5 

 73.0 



N. 

 3.88 

 3.877 

 33 



N. 



11 

 11 



6 







9 





 () 

 

 3 



2 











20.0 



8.0 



12.0 



28.0 



9.0 



54.7 



36.4 



18.3 

 68.5 



S.E. 

 1.83 

 4.442 

 32 



S.E. 



16 

 4 

 9 

 



10 









 

 3 



7 

 



1 



13.6 



11.3 



2.3 



30.11 

 30.41 



29.85 



0.56 

 53.5 

 67.0 

 40.0 



27.0 



19.0 



5.0 



59.3 



47.7 



11.6 



82.2 



S.E. 

 5.06 

 4.038 

 22 



S.W. 



7 

 11 

 10 





 13 





 



1 ' 



2 

 

 







26.6 



20.5 



6.1 



30.17 



:;u.->2 

 29.75 



0.77 

 16.3 

 62.8 

 30.9 



31.9 



23.3 



,9.0 



54.6 



38.3 



16.3 



74.1 

 37.9 

 S.E. 

 2.40 

 5.176 

 27 

 N. & 

 S.E. 

 11 

 11 

 6 

 

 10 







1 







10 



3 



2 



2 



16.2 



11.0 



5.2 



30.14 

 30.74 

 29.(58 



1.08 

 46.0 

 71.7 

 22.0 



49.7 



28.0 



11.0 



55.9 



35.9 



20.0 

 68.3 

 35.3 



N. 



1.11 



3.817 



23 



N.W. 



19 

 8 

 1 

 

 4 





 

 

 3 

 13 

 2 



11 



11.7 



9.4 



2.3 



30.04 

 30.43 

 29.42 



1.01 

 46.9 

 71.0 

 21.0 



50.0 



25.6 



7.0 



56.1 



38.9 



17.2 

 79.7 

 40.5 



N. 



4.46 



5.170 



33 



S. 



17 

 5 



7 







10 









 





 8 

 



6 



17.6 



10.1 



7.5 



30.14 

 30.43 

 29.86 



0.57 

 54.0 

 70.0 

 39.8 



30.2 



21.5 



8.0 



62.5 



46.4 



16.1 



73.8 



45.2 



N.W. 

 0.49 

 4.851 

 31 



N.W. 



18 

 8 

 2 





 6 



0' 





 



6 

 

 







18.0 



16.1 



1.9 



30.08 

 30.38 



29.68 



0.70 

 53.3 



72.7 

 38.0 



34.7 



23.0 



7.0 



61.4 



47.1 



14.3 



81.5 



47.2 



N.W. 

 0.29 

 4.065 

 32 



N.W. 



17 

 11 











3 





 

 

 

 

 







25.0 



19.8 



5.2 



30.02 

 30.4* i 

 29.54 



.92 

 44.7 

 67.0 

 30.0 



37.0 



25.2 



7.2 



52.2 



37.4 



14.8 



76.7 



37.3 

 S. 



6.28 

 6.305 

 33 



N.W. 



8 

 11 



9 





 14 





 

 

 4 

 6 

 



1 



18.6 



10.3 



8.3 



