Annual Summary for 1903. 



Pressure. In inches. 



Maximum reduced to freezing, 30.3S, Nov. 21st, 10 A. 



Minimum reduced to freezing, • 28.61, Feb. 17th, 3 a. 



Maximum reduced to freezing and sea-level, 30.70, Nov. 21st, 10 A. 



Minimum reduced to freezing and sea-level, 28.93, Feb. 17th, 3 A. 



Mean reduced to freezing and sea-level, 29.996 



Annual range, 1.77 



*Air Temperature. In degrees Fahr. 



Highest 97.0, July 9th, 4 p. 



Lowest, . . • — 12.0, Jan. 20th, 9 a. 



Mean, 46.7 



Mean of means of max. and min., 47.0 



Mean sensible (wet bulb) , 43.0 



Annual range, 109° 



Highest mean daily 79.6, July 9th. 



Lowest mean daily — 3.0, Jan. 19th. 



Mean maximum, 57.8 



Mean minimum, 36.1 



Mean daily range, 21.7 



Greatest daily range, 45.0, Feb. 21st. Mar. 14th., 



May 12th. 

 Least daily range, . . .3.5 June 15th., Oct. nth. 



Humidity. 



Mean dew point, 37.6 



Mean force of vapor, 403 



Mean relative humidity, 73.5 



Wind. 



Prevailing direction, West Southwest. 



Summary. 



West, 14 per cent 



North, Northwest, 10 " " 



South, Southwest, 12 " " 



West, Northwest, 9 " " 



South, 9 " " 



Other directions, 46 " " 



Total movement, 46256 m. 



Greatest daily movement, . . . 402m., Apr. 17th. 



Least daily movement, 4 m., Aug. 27th. 



Mean daily movement, 126.7 m- 



Mean hourly velocity, 5.28 m. 



*Temperature in ground shelter. 



F. F. HENS HAW, 

 Obsen<er. 



Maximum pressure per square foot, 22.0 lbs. =66 

 m. per hour, Feb. 12th, 12 M. 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, 116 



Snow total in inches, 33.5 



Weather, 



Mean cloudiness observed, 53 per cent. 



Total cloudiness recorded by Sun Thermom- 

 eter, 2328 hrs.=52 per cent. 



Number of clear days, 119 



Number of fair days 98 



Number of cloudy days, 148 



Bright Sunshine. 



Number of hours recorded,2i26 hrs.^4S per cent. 



Dates of Frosts. 



Last, May 2d. 



First, Sept. 25th. 



Dates of Snow. 



Last, Apr. 4th. 



First, Oct. 26th. 



Total days of sleighing, 52 



Gales of 50 or More Miles Per Hour 



Jan. 50 m., 31st, W. 



Feb. 56 m., 9th, S.W.; 66 ni, 12th, W., 58 m- 



28th, S.S.W. 

 Apr. 30 m., iSth, W.S.W. 

 July 56 m., 29th, S.W. 

 Dec. 58 m., 13th, W., 51 m. 22nd, W.N.W. 



J. E. OSTRANDER, 



Meteorolos[ist. 



I 



