METEOROLOGICAL RECORDS 21 



Wind (in Miles) — Continued 



Greatest monthly movement, April 1908 8,208 



Least monthly movement, July 1894 1,109 



Mean monthly movement 4,352 



Greatest daily movement, April 8, 1909 705 



Least daily movement, Sept. 29, 1894; Mar. 7, 1890; Jan. 6, 1904; 



Dec. 4, 1916; Oct. 6, 1920 



Mean daily movement 146 



Maximum velocity for 5 minutes, Sept. 21, 1938, 5:17 p.m 80 



Weather 



Mean cloudiness observed, percent 51.7 



Percent of possible hours bright sunshine 53 



Mean annual number of clear days , 116 



Mean annual number of fair days 123 



Mean annual number of cloudy days 126 



Mean annual number of days of precipitation 124 



Mean date of last snow April 15 



Mean date of first snow^ Nov. 6 



Mean date of last frost May 14 



Mean date of first frost Sept. 21 



