Annual Summary for 1910. 



Pressure. In inches. 



Maximum reduced to freezing, 



Minimum reduced to freezing, 



Maximum reduced to freezing and sea-level, 

 Minimum reduced to freezing and sea-level, 

 Mean reduced to freezing and sea-level, . • • 

 Annual range, 



• 30-53. Jan. 4th, 11 p. 



28.80. Jan. 29th, 5 p. 



30.87, Jan. 4th, II p. 

 . 29.11, Jan. 29th, 5 p. 



30.000 



1.76 



*Air Temperature. In degrees Fahr. 



Highest, 97.0, July 24th, 3 P. 



Lowest, —9-0, Jan. 5, 5-30 a. 



Mean hourly, 47-4 



Mean of means of max. and min., 47-8 



Mean sensible (wet bulb) , . 42-4 



Annual range, 106.0 



Highest mean daily, 80.1, July 10 



Lowest mean daily, 0.0, Jan. 5 



Mean maximum, 53-5 



Mean minimum, 33-8 



Mean daily range i9-7 



Greatest daily range, 42-0, Mar. 29 



Least daily range, 2.5, Jan. 25 



Humidity. 



Mean dew point, 38-3 



Mean force of vapor, 379 



Mean relative humidity, 76-0 



Wind. 



Prevailing direction, .... 



Summary. 



West, Northwest 



South, Southwest 13 per cent. 



West, Northwest, 12 " " 



Northwest, 10 " 



North, Northwest 10 " " 



Other directions, 55 " 



Total movement 59-242 m 



Greatest daily movement, . . • - 468 m., Nov. 27 



Least daily movement, 28 m., Jan. 17 



Mean daily movement, 162 m 



Mean hourly velocity, 6.8 m 



Maximum pressure per square foot, 15.0 lbs.=55 

 m. per hour, Jan. 3, 11 p., N.N.W. and Feb. 

 23, II A., W.N.W. 



Maximum velocity for 5 minutes, 42 m. per 

 hour, Dec. 30, 4 p., N.W. 



Precipitation. In inches. 



Total precipitation, rain or melted snow, . 36.H 

 Number of days on which .01 or more rain 



or melted snow fell, 117 



Snow total in inches, 44.5 



Weather. 



Mean cloudiness observed, 54 per cent. 



Total cloudiness recorded by Sun Thermom- 

 eter, 1661 hrs. =37 per cent. 



Number of clear days 142 



Number of fair days, 152 



Number of cloudy days, 71 



Bright Sunshine- 

 Number of hours recorded,2793 hrs.=63 per cent 



Dates of Frosts. 



Last, May 6th 



First Sept. 23d 



Dates of Snow. 



Last, March 14th 



First, Oct. 27th 



Total days of sleighing, 53 



Gal s of 50 or More Miles Per Hour. 



Jan. 3d, 55 m., N.N.W.; 4th, 51m., N.N.W. 

 Feb. 23d, 55 m., W.N.W. 



♦Temperature in ground shelter. 



C. M. DAMON, 



Observer, 



J. E. OSTRANDER, 



Meteorologist. 



