ANNUAL SUMMARY 



Annual 1941 



Normal 



Barometer, in inches 



(Readings reduced to sea level) 



Maximum 30.67, Dec. 12 



Minimum 28.91, Feb. 7-8 



Mean semi-daily 29.997 



Range 1 .76 



Air Temperature, in degrees F. 



Highest 94, June 27 



Lowest -9, Jan . 30 



Mean 48.5 



Range 103 



Highest mean daily 81, July 2 



Lowest mean daily 4.5, Jan. 30 



Mean maximum 59.7 



Mean minimum 37.3 



Greatest daily range. . . .44, April 29, May 6 



Least daily range 2, Jan. 18 



Precipitation, in inches 



Precipitation 33.93 



Snow 42.50 



Max. precipitation in 24hrs.2.12, Dec. 13,14 



Number of days with .01 or more 90 



Wind, in miles 



Total movement 54,931 



Greatest daily movement 549, Mar. 19 



Least daily movement 11, Deo. 31 



Mean velocity 6.3 



Maximum velocity .-. 48, Mar. 18 



Wind, direction 



Prevailing direction WNW 



North, days 71 



Northeast, days 5 



East, days 4 



Southeast, days 24 



South, days 69 



Southwest, days 27 



West, days 24 



Northwest, days 141 



Weather 



Mean relative humidity, percent 68.7 



Mean cloudiness, percent 49.0 



Number of clear days 217 



Number of fair days .77 



Number of cloudy days 71 



Number hours bright sunshine 3,038 



Percent of possible hours of bright 



sunshine 68.2 



Last snow April 17 



First snow Dec. 13 



Last frost May 13 



First frost Sept. 30 



30.81 



28.95 



30.01 



1.85 



95.7 

 -12.2 



47.4 

 107.8 



57.8 

 36.5 



43.70 



47.78 



124 

 52,223 



5.8 

 39.5 



W 



67.6 

 51.7 



116 



123 



126 

 2,353 



52.8 

 April 15 

 Nov. 6 

 May 14 

 Sept. 21 



Extremes 



31.05, 1920 

 28.41, 1938 



2.47, 1938; 1.38, 1933 



104, 1911 



-26, 1904 



49.8, 1921; 44, 1904 



59.00, 1938; 30.68, 1908 

 89.00, 1893; 24.50, 1919 



144, 1902; 96, 1924 



63,571, 1908; 36,257, 1S94 



80, 1938 



60, '98, '01, '02; 41, '08, '24 



169, 1936; 59, 1927 



182, 1912; 64, 1936 



179, '01, '02; 71, 1910 



2838, 1924; 1864, 1902 



Mar. 14, '10; May 11, '07 



Oct. 10, '25; Nov. 27, '31 



Apr. 23, '04; June 8, '32 



Aug. 22, '94, '95;Oct. 13,'09 



