270 



TRANSACTIONS OF THE 



December Weather, from 1877 to 1886. 



The weather review in the following table shows the monthly average 

 barometer; highest, lowest, and monthly range of barometer; the monthly 

 average temperature; highest, lowest, and monthly range of temperature; 

 the greatest and least daily range of temperature; the mean, maximum, 

 minimum, and range of temperature; the average relative humidity and 

 dew point; total precipitation; prevailing direction; total and maximum 

 velocity of wind, with the direction at time of maximum velocity; total 

 number of clear, fair, cloudy, and foggy days, and total number of days 

 rain fell; solar and lunar halos; light and killing frosts; number of days the 

 minimum temperature was below 32°; and the highest, lowest, and monthly 

 range of water in the river: 



Decembeu : 



1877. 18 



1879. 



18S0. 1881. 1882 



18S3. 1884. 



1885. 



1S86. 



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 



Mean maximum tempera- 

 ture 



Mean minimum tempera- 

 ture 



Mean range of tempera- 

 ture 



Average humidity 



Average dew point 



Prevailing wind 



Total precipitation 



Total velocity of wind 



Maximum velocity of wind 

 Direction at time of max- ) 



imum velocity ) 



Clear days 



Fair days 



Cloudy days 



Foggy days 



Days rain fell 



Days snow fell 



Solar halos 



Lunar halos 



Light frost 



Killing frost 



Number of days the min- 

 imum temperature was 



below 32° 



Highest river 



Lowest river .._. 



Range of river 



30.05 

 30.38 

 29.66 



0.72 

 48.6 

 07.0 

 32.0 



35.0 



27.0 



0.0 



56.3 



39.3 



17.0 

 74.0 



N. 



1.43 



3.187 



10 



13 



11 

 7 

 

 5 

 

 

 

 6 

 6 







10.7 



6.4 



4.3 



30.13 

 30.51 

 29.78 



0.73 

 47.2 

 66.3 

 23.5 



42.8 



28.5 



13.0 



57.2 



34.7 



22.5 

 55.0 



30.13 



30.08 

 20.47 



1.21 

 44.0 

 63.0 

 25.0 



38.0 



21.0 



7.0 

 50.4 

 36.5 



13.9 



84.0 



N. 

 0.47 

 4.031 

 30 



N. 



22 

 "5 



4 







4 















7 

 13 



10 



6.0 

 5.7 

 0.9 



S.K. 

 3.41 

 4.928 

 39 



S. 



11 



8 

 12 



4 

 12 













 <> 



8 



17.5 



11.1 



6.4 



30.04 

 30.46 



29.48 



0.98 

 50.3 

 63.0 

 38.0 



25.0 



13.0 



3.0 



54.4 



45.4 



9.0 



S7.0 



S.E. 

 11.81 



6.453 



40 



S.E. 



3 



5 



23 



3 



22 

 

 

 

 

 





 20.3 



7.6 

 2.7 



30.20 

 30.41 



29.88 



0.53 

 46.2 

 62.0 

 31.9 



30.1 



20.9 



5.0 



52.7 



39.6 



13.1 



85.5 

 41.7 



S.E. 



3.27 



3.717 



24 



S.E. 



15 

 9 



7 



5 



12 







1 

 



7 

 1 



1 

 15.4 



7.7 

 7.7 



30.18 

 30.38 



2! (.77 



0.61 

 48.2 

 il.s.11 

 27.0 



41.0 



23.2 



7.5 



55.7 

 40.1 



15.6 



82. 1 



42.6 

 S.E. 

 1.13 

 3.544 

 19 



W.SE 



,v>\v 



16 

 11 



'4 



1 



8 



1 









 13 



o 



1 



10.8 



8.5 



2.3 



30.18 

 30.49 

 29.72 



0.77 

 44.2 

 67.0 

 24.0 



43.0 



31.0 



6.5 



53.3 



36.4 



16.9 



88.5 



40.7 



S.E. 

 0.44 

 2.845 

 16 



W. 



17 

 10 



4 

 8 

 8 

 

 

 

 4 



3 



9.8 

 7.0 



29.96 

 30.30 



29.49 



0.81 

 48.8 

 65.0 

 27.0 



38.0 



27.5 



5.0 



56.2 



41.6 



11.6 

 71.1 

 38.9 

 S.E. 



10.45 



7.81' 

 36 



N.W. 



13 



8 

 10 





 14 













 13 



5 



4 

 24.6 



7.5 

 17.1 



30.14 

 30.35 

 29.77 



0.58 

 49.1 

 H4.7 

 37.7 



27.0 



16.0 



2.8 



53.8 



45.0 



8.8 

 90.3 

 40.2 



S.E. 



5.76 



4.458 



25 



N.W. 



11 



7 

 13 



3 

 10. 











1 



5 











23.8 



17.2 



6.6 



30.16 

 30.40 

 29.86 



0.54 

 49.2 

 65.2 

 32.0 



33.2 



32.2 



5.5 



57.6 



42.2 



15.4 

 82.9 

 13.8 



S.E. 



2.21 



3.294 



25 



S.E. 



12 

 11 



8 







8 







1 







3 



9 







10.8 



7.7 



3.1 



