340 



TRANSACTIONS OF THE 

 Mean Temperature from Self- Regulating Instruments. 



Month. 



Monthly Maximum 

 Mean. 



Date. 



Minimum. 



Date. 



Absolute 

 Range. 



Mean 

 Maximum. 



Mean 

 Minimum. 



January 



February 



March..' 



April 



May 



June 



July 



August 



September 



October 



November 



December 



Annual means.. 



44.1 

 53.2 

 54.1 

 67.1 

 68.6 

 74.1 

 80.6 

 82.9 

 80.3 

 66.2 

 53.7 

 47.9 



64.4 



68.5 



83.0 



77.1 



97.5 



96.2 



103.5 



109.2 



111.1 



110.9 



93.5 



78.0 



65.9 



16 

 29 



1 



6 

 23 



7 

 12 



1 

 29 

 25 

 13 



3 



48.9 

 53.4 

 49.0 

 56.6 

 50.0 

 53.0 

 55.7 

 55.0 

 56.4 

 52.5 

 43.2 

 31.3 



53.0 

 65.5 

 65.5 

 81.9 

 82.6 

 88.2 

 99 5 

 101.5 

 97.6 

 82.3 

 64.6 

 54.2 



78.0 



35.2 

 40.4 

 41.6 

 50.3 

 53.4 

 58.5 

 63.9 

 64.6 

 63.8 

 50.7 

 44.0 

 42.4 



50.7- 



Month. 



Mean 

 Dew Point. 



Mean 



Relative 



Humidity. 



Mean 

 Cloudiness. 



Total 



Amount of 



Precipitation. 



January 



February 



March 



April 



May 



June.. 



July 



August 



September 



October 



November 



December.. 



Annual means 



38.3 

 44.3 

 45.3 

 49.4 

 51.3 

 53.4 

 54.1 

 52.6 

 56.4 

 49.3 

 46.3 

 45.8 



48.8 



81.2 

 74.2 

 74.6 

 56.6 

 57.9 

 51.8 

 45.4 

 40.8 

 49.0 

 59.0 

 78.8 

 93.0 



60.2 



4.2 

 2.0 

 3.1 

 1.8 

 2.3 

 1.5 

 1.2 

 0.8 

 1.2 

 0.7 

 3.2 

 7.3 



1.75 

 0.13 

 1.95 

 0.22 

 0.56 



trace. 



trace. 



trace. 

 0.06 

 0.00 

 2.38 

 1.71 



2.4 



8.76 



Elevation of thermometer bulbs above ground on December 31, 46 feet. 



Velocity and Direction of Wind. 



