ANNUAL SUMMARY 



ANNUAL 



Barometer, in inches 



(Readings reduced to sea level) 



Maximum 30.660, Jan. 25th 



Minimum 29.122, Mar. 11th 



Mean semi-daily 29.979 



Range 1.538 



Air Temperature, in degrees F. 



Highest 98, June 26th 



Lowest — 7, Jan. 30th 



Mean :....49.9 



Range 105 



Highest mean daily 84.5, June 26th 



Lowest mean daily 6.5 Jan. 30th 



Mean maximum 60.1 



Mean minimum 39.7 



Greatest daily range 45, April 22nd 



Least daily range 3, Jan. 6, 28, July 10 



Degree-days 1951-52 heating season. . . .6223 



Precipitation, in incties 



Precipitation 40.61 



Snow 38.3 



Maximum precip. in 24 hrs.. . .2.70, June 1st 

 Number of days with .01 or more 97 



Wind, in miles 



Total movement 40,259 



Greatest daily movement. . . . 461, Feb. 12th 



Least daily movement 3, Nov. 9th 



Mean hourly velocity 4.64 



Maximum velocity .40, Jan. 18th, Feb. 12th 



Wind, direction 



Prevailing direction NNW 



North, days 38 



Northeast, days 41 



East, days 13 



Southeast, days 40 



South, days 41 



Southwest, days 37 



West, days 44 



Northwest, days 112 



Weather 



Mean relative humidity, percent 76.6 



Mean cloudiness, percent 49.7 



Number of clear days 92 



Number of fair days 146 



Number of cloudy days 127 



Number of hours bright sunshine 2134 



Percent of possible hours of 



bright sunshine 46.6 



Last snow Mar. 19th 



First snow Nov. 8th 



Last frost May 17th 



First frost Oct. 11th 



Normal 



30.81 

 28.95 

 30.01 



1.85 



95.7 



—12.2 



47.4 



107.8 



57.8 

 36.5 



6698 



43.70 

 47.78 



124 



52,223 



5.8 

 39.5 



W 



67.6 



51.7 

 116 

 123 

 126 



2,353 



52.8 

 April IS 

 Nov. 6 

 May 14 

 Sept. 21 



Extremes 



31.10, 1949 

 28.41, 1938 



2.47, 1938; 1.38, 1933 



104, 1911 



—26, 1904 



51.7, 1949; 44, 1904 



59.00, 1938; 30.68, 1908 

 89.00, 1893; 24.50, 1919 



146, 1945; 96, 1924 



63,571, 1908; 36,257, 1894 

 705, 1909 



80, 1938 



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

 217, 1941; 59, 1927 

 182. 1912; 64, 1936 



179, '01, '02; 71, 1910, 1941 

 3038,1941; 1864,1902 



Mar. 14 '10; May 11, '07, '45 



Oct. 10, '25; Dec. 13, '41 



Apr. 14, '43; June 8, '32 



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



