Annual Summary for 1912. 



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, 



30.37, Mar. 6th, i A. 



28.41, Feb. 22d, 6 a. 



30.70, Mar. 6th, i A. 



28. 72, Feb. 22d, 6 A. 



30-007 



1.98 



*Air Temperature. In degrees Fahr. 

 Highest, . 98.5. July 8th, 3:30 P.; Julygth, 2 P. 



Lowest —19.0, Jan. 14th, 8:30 A. 



Mean hourly, 46-5 



Mean of means of max. and min., 46-9 



Mean sensible (wet bulb), 4i-6 



Annual range, ii7-5 



Highest mean daily, 81.6, JulyS, 9, 10 



Lowest mean daily, — 3-8) Feb. 10 



Mean maximum, 57-6 



Mean minimum, 36-2 



Mean daily range, 21.4 



Greatest daily range 45.5, Oct. 17. 



Least daily range, 4-0- Dec. 20 



Humidity. 



Mean dew point, 38-6 



Mean force of vapor, 375 



Mean relative humidity, 77.3 



Wind. 



Prevailing direction, West 



Summary. 



Northwest, 16 per cent. 



North II " 



South 10 " 



Soutli Southwest, 14 " 



Other directions, 49 " 



Total movement, 55.897 m 



Greatest daily movement 57Sm., Feb. 22 



Least daily movement 3 m-i Feb. 17 



Mean daily movement, 152 m 



Mean hourly velocity 6.3 m 



♦Temperature in ground shelter. 



Maximum pressure per square foot, 23.0 lbs. =68 

 m. per hour, Feb. 22d, 9 A., W.S.W. 



Maximum velocity for 5 minutes, 52 m. per 

 hour, Feb. 22d, 10 A., W.S.W. 



Precipitation. In inches. 

 Total precipitation, rain or melted snow, . 38.56 

 Number of days on which .01 or more rain 



or melted snow fell, 117 



Snow total in inches, 33 8 



Weatlier. 



Mean cloudiness observed 52 per cent. 



Total cloudiness recorded by Sun Thermom- 

 eter, 2076 hrs.=:46 per cent. 



Number of clear days, 71 



Number of fair days, 1S2 



Number of cloudy days 113 



Bright Suhsliine- 



Number of hours recorded,239o hrs.=54 per cent 



Dates of Frosts. 



Last, May 1st 



First, Aug. 31st 



Dates of Snow. 



Last April gth 



First Nov. 3d 



Total days of sleighing, 61 



Gales of 50 or More Miles Per Hour. 



Jan. 9th, 62m., W.; Feb. 22d, 6Sm., W.S.W.; 

 May 17th, 52m., W.; 19th, 52ni-. W.N.W.; 

 Nov. 24th, 60m, E.N.E. 



H. W. ANGIER, 



Obsen<er. 



J. E. OSTRANDER, 



Meteorologist. 



