262 



TRANSACTIONS OF THE 



April Weather, from 1878 to 1887. 



The data contained in this table show the monthly average, the high- 

 est, lowest, and monthly range of the barometer; the monthly average, the 

 highest, lowest, and monthly range of temperature; the greatest and least 

 daily range of temperature; average maximum, minimum, and range of 

 temperature; average relative humidity and dew point; total precipita- 

 tion; prevailing direction, total, and maximum velocity of wind, with 

 the direction at time of maximum velocity; total number of clear, fair, 

 and cloudy days, with the total number of days rain fell; auroras; solar 

 and lunar halos; light frosts; and the highest and lowest water in the river, 

 along with the monthly range of same: 



April: 



1878. 



1879. 



lSMI. 



1881. 1882. 1883. 1884 



1885. 1886. 1887 



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 



Average daily range of 



temperature .. 



Average humidity 



Average dew point 



Prevailing wind 



Total precipitation 



Total velocity of wind 



Maximum velocity of wind- 

 Direction at time of max- ( 



imum velocity j 



Clear days 



Fair days . 



Cloudy <lays 



Foggy days 



Days rain fell 



Thunder and lightning 



storms 



Auroras 



Solar halos 



Lunar halos 



Light frosts 



Highest river 



Li i west river 



Range of river 



29.89 

 30.21 

 29.56 



0.65 

 59.4 

 78.0 

 41.0 



37.0 



27.0 



11.0 



68.1 



49.8 



18.3 

 65.6 



30.02 

 3U.32 

 29.79 



0.53 

 60.3 

 83.0 

 44.6 



38.4 



28.0 



6.5 



69.7 



51.1 



18.6 

 65.4 



S. 



1.07 

 4.759 



32 



N.W. 



15 



12 

 3 



0' 

 4 























21.7 



19.5 



2.2 



S. 



2.66 

 4.814 

 32 



N. 



14 



9 



7 





 12 





 



1 

 



1 



22.8 



21.0 



1.8 



30.04 

 30.25 

 29.55 



0.70 



54.6 

 78.0 

 40.0 



38.0 



24.0 



6.0 



62.6 



47.5 



15.1 

 73.0 



29.93 

 30.22 

 29.78 



0.44 

 60.9 

 84.0 

 44.0 



40.0 



26.0 



G.O 



71.8 



52.7 



19.1 

 70.6 



S. 

 14.20 

 6.597 

 34 



S. 



10 

 10 

 10 

 

 16 











1 



1 





 24.4 

 14.1 

 10.3 



S. 

 1.64 



4.7*7 

 22 



17 

 9 

 4 

 

 8 























20.6 



19.7 



0.9 



30.05 

 30.29 

 29.80 



0.49 

 55.8 

 82.2 

 40.5 



41.7 



32.8 



7.0 



65.9 



47.2 



18.7 

 64.2 

 42.4 



N. 



1.99 



5.785 



35 



N. 



16 

 9 

 5 

 

 9 







1 



1 



1 



1 



21.2 



19.8 



1.4 



30.04 

 30.43 



29.68 



0.75 

 56.0 

 76.0 

 39.8 



36.2 



31.0 



10.0 



66.5 



46.6 



19.9 



66.1 



43.8 



S. 



0.07 



5.933 



34 



N.W. 



16 



13 



1 







' 8 











3 







2 



19.8 



16.3 



3.5 



29.98 

 30.25 



29.02 



0.63 

 56.7 

 74.2 

 40.0 



34.2 



22.5 



6.0 



65.8 



49.5 



16.3 



74.6 

 48.2 

 S.W. 

 4.32 



5.609 



27 



S.E. 



13 



7 



10 







9 





 

 3 

 2 







23.5 

 19.8 



3.7 



29.96 

 30.20 

 29.52 



0.08 

 60.6 

 83.0 

 39.0 



44.0 



31.0 



10.0 

 71.3 

 51.5 



19.8 



71.1 



50.5 



S.W. 

 0.68 

 5.0i 9 

 23 



S. 



14 

 12 



4 







0. 















4 



15.2 



13.4 



1.8 



29.95 

 30.24 

 29.63 



0.61 

 55.5 

 79.7 

 39.0 



40.7 



26.2 



5.3 



65.4 



48.1 



17.3 



75.8 



47.3 

 S. 



4.08 

 5.725 

 36 



N.W. 



13 

 12 



5 





 12 





 

 3 





 2 



23.7 



17.4 



6.3 



29.99 

 30.26 

 29.70 



0.56 

 58.3 

 83.5 

 41.2 



42.3 



32.0 



8.3 



69.5 



48.9 



20.7 

 65.5 

 45.5 

 N.W. 

 2.53 

 6.320 

 30 

 N.W. 

 &S.E. 

 20 

 7 

 3 

 

 10 



















1 



20.5 



19.3 



1.2 



