Annual Summary for 1906. 



Pressure . In inches. 



Maximum reduced to freezing, 3o-63i Feb. nth, ii A. 



Minimum reduced to freezing, • 28.94. Jan. 4th, 12 M. 



Maximum reduced to freezing and sea-level 30-95i Feb. nth, 11 A. 



Minimum reduced to freezing and sea-level, 29-25> Jan. 4th, 12 M. 



Mean reduced to freezing and sea-level, 30.051 



Annual range, i-7o 



*Air Temperature. In degrees Fahr. 



Highest, 91.0, Sept. 18th, 3:30 p. 



Lov^est, . . • —7.5, Mar. 24th, 7 A. 



Mean, 47-3 



Mean of means of max. and niin., 47.6 



Mean sensible (wet bulb) , 42.9 



Annual range, 98-5 



Highest mean daily 77.8, Aug. 23d. 



Lowest mean daily, 4.4, Dec. 8th. 



Mean maximum, 58.3 



Mean minimum, 37.0 



Mean daily range, 21.3 



Greatest daily range 47.5, Mar. 25th 



Least daily range, 3.0, May28th,Sept.2d,Dec.2ist 



Humidity. 



Mean dew' point 38.6 



Mean force of vapor, 383 



Mean relative humidity, 77-i 



Wind. 



Prevailing direction West, Northwest 



Summary. 



North, Northwest, 13 per cent. 



North, 10 " 



South, 12 " 



Northwest, 11 " " 



Other directions, 54 " " 



Total movement, 53-273 in- 

 Greatest daily movement, . . . 572 m., Feb. 28th. 

 Least daily movement,! m., Feb. 14th, May 6th. 



Mean daily movement, 146 m. 



Mean hourly velocity, 6.1 m. 



*Temperature in ground shelter. 



T. A. BARRY, 



Observer. 



Maximum pressure per square foot, 12.0 lbs.=49 

 m. per hour, Dec. 1st, 6 p., N.N.W. 



Maximum velocity for 5 minutes, 36 m. per 

 hour, Apr. 24th, 2 P. N.N.W.; Dec. ist, 7 p. 

 W.N.W. 



Precipitation. In inches. 



Total precipitation, rain or melted snow, . 45.45 

 Number of days on which .01 or more rain 



or melted snow fell, 121 



Snow total in inches, 564 



Weather, 



Mean cloudiness observed, 50 per cent. 



Total cloudiness recorded by Sun Thermom- 

 eter, 1794 hrs.=4o per cent. 



Number of clear days, 130 



Number of fair days, 140 



Number of cloudy days 95 



Bright Sunshine. 



Number of hours recorded,266o hrs.=6o per cent. 



Dates of Frosts. 



Last, May 20th 



First, Sept. 25th 



Dates of Snoto. 



Last, ; Apr. 23d 



First, Nov. nth 



Total days of sleighing, 57 



Oales 0/ 50 or More iWiles Per Hour, 



None. 



J. E. OSTRANDER, 



Meteorologist. 



