274 



TRANSACTIONS OF THE 



Comparative Fall or Autumn Weather, from 1877 to 1886. 



The following comparative weather table shows the average barometer, 

 highest, lowest, and range of barometer; average temperature, highest, low- 

 est, and range of temperature; average relative humidity and dew point; 

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

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

 fair, and cloudy days, and number of days rain fell; solar and lunar halos; 

 light and killing frosts; number of days maximum temperature was above 

 90° j number of days minimum temperature was below 32°; and the high- 

 est, lowest, and range of water in the river during each Fall: 



Fall of : 



1877. 



1S7S. 



1879. 



1880. 



1881. 



1882. 



1883. 



1884. 



1SS5. 



1886. 



Average barometer 



Highest barometer 



Lowest barometer 



Range of barometer 



Average temperature 



Highest temperature 



Lowest temperature 



Range of temperature ... 



Average humidity 



Average dew point 



Prevailing wind... \ 



Total precipitation 



Total velocity of wind 



Maximum velocity of 



wind 



Direction at time of maxi- 

 mum velocity..- 



Clear days 



Fair days 



Cloudy days 



Hays rain fell 



Solar halos 



Lunar halos 



Number of light frosts. .. 

 Number of killing frosts . 

 Number days maximum 

 temperature above 90° _ 

 Number days minimum 

 temperature below 32° . 



Highest river 



Lowest river 



Range of river 



29.97 

 30.34 

 29.70 

 0.64 

 63.4 

 88.0 

 37.0 

 51.0 

 54.3 



1.80 

 10.669 



28 



N.W. 

 76 



6 



9 

 13 







1 



3 







12 





 9.4 

 5.2 



4.2 . 



29.99 

 30.47 

 29.68 

 0.79 

 62.5 

 92.0 

 34.0 

 58.0 

 54.4 



N. 



1.35 



11.269 



32 



N. 

 71 

 16 



4 



7 











6 



3 





 8.3 

 5.5 



2.8 



30.00 

 30.41 

 29.38 

 1.03 

 60.9 

 96.0 

 33.0 

 63.0 

 65.2 



S. 



2.93 

 10.492 



36 



N. 

 59 

 20 

 12 

 13 



2 



2 



5 



4 



10 





 8.6 

 5.8 



2.8 



30.04 

 30.49 

 29.73 

 0.76 

 59.9 

 92.0 

 27.0 

 65.0 

 54.9 



N. 



0.05 

 11.518 



28 



N. 

 71 

 14 



6 



2 



2 







4 

 12 



9 

 9.3 

 7.4 

 1.9 



30.03 

 30.44 

 29.61 

 0.83 

 58.5 

 96.0 

 32.0 

 64.0 

 58.4 

 42.4 



N. 



2.73 

 12.993 



24 



N. 

 73 

 15 



3 

 12 









 11 



3 





 9.0 

 6.4 

 2.6 



30.02 

 30.45 

 29.77 

 0.68 

 58.8 

 99.6 

 34.0 

 65.6 

 69.6 

 47.5 



N.W. 



6.42 

 12.213 



32 



N.W. 



61 



22 



8 



16 



1 







26 











13.1 



6.5 



6.6 



30.01 

 30.41 

 29.62 



0.79 



60.1 



101.0 



29.0 



72.0 



68.8 

 48.7 



2.48 

 10.771 



N.W. 

 67 

 18 



6 

 14 









 19 



6 



8 



2 

 8.3 



6.5 



1.8 



30.00 

 30.27 

 29.62 



0.65 

 (iO.O 

 93.5 

 37.7 

 55.8 

 69.1 

 49.0 

 N. & 



S.E. 



2.61 

 10.659 



N.W. 



75 

 13 



3 



9 



1 



4 

 17 











10.1 



7.8 



2.3 



29.93 

 30.27 

 29.46 

 0.81 

 62.8 

 98.5 

 38.5 

 60.0 

 66.3 

 49.2 



S.E. 



11.44 

 14.214 



36 



S.E. 

 51 

 23 

 17 

 25 



2 







3 







15 







20.6 



7.3 



13.3 



30.01 

 30.37 

 29.58 

 0.79 

 58.5 

 96.0 

 32.2 

 63.8 

 64.5 

 45.1 



N.W. 



0.89 

 10.635 



36 



N.W. 



78 

 12 



1 



7 



1 





 20 



2 





 8.4 

 7.4 

 1.0 



Annual Weather Summary for 1878, 1879, 1880, 1881, 1882, 1883, 1884, 



1885, and 1886. 



The accompanying table gives the average barometer, the highest, low- 

 est, and range of barometer for each year; the average temperature; high- 

 est, lowest, and range of temperature; greatest and least monthly range 

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

 average relative humidity and dew point; total yearly precipitation; pre- 

 vailing direction of wind ; total and maximum velocity of wind and direc- 

 tion at time of maximum velocity; annual number of clear, fair, cloudy, 

 and foggy days, and total number of days each year that rain fell; total 

 number of earthquakes, snow storms, and storms with thunder and light- 

 ning; total number of solar and lunar halos, light and killing frosts; total 



