ANNUAL SUMMARY 



Annual 1942 



Barometer, in inches 



(Readings reduced to sea level) 



Maximum 30.90, Dec. 27 



Minimum 28.57, Dec. 2 



Mean semi-daily 30.004 



Range 2.33 



Air Teniperalure, in degrees F. 



Highest ___--_ 93, July 19 



Lowest -15, Dec. 20, 21 



Mean ._ 48.8 



Range - 108 



Highest mean daily 80.5, Aug. 22 



Lowest mean daily —5. Dec. 20 



Mean maximum „. 59.1 



Mean minimum 38.6 



Greatest daily range 44, Apr. 24, 25 



Least daily range 3, July 27 



Precipitation, in inches 



Precipitation 47.85 



Snow 33.75 



Maximum precipitation in 24 hrs. 233, Dec. 30 

 Number of days with .01 or more 112 



Wind, in miles 



Total movement 50,246 



Greatest daily movement 475, Jan. 29 



Least daily movement — -13, Jan. 1 



Mean hourly velocity 5.7 



Maximum velocity „. 48, Mar. 3, Dec. 2 



Wind, direction 



Prevailing direction — -W 



North, days 50 



Northeast, days — 4 



East, days 4 



Southeast, days 1— 58 



South, days -_.. 49 



Southwest, days 28 



West, days 56 



Northwest, days 116 



Weather 



Mean relative humidity, percent 70.9 



Mean cloudiness, percent 55 



Number of clear days . 165 



Number of fair days 102 



Number of cloudy days 98 



Number hours bright sunshine 2605 



Percent of possible hours of bright 



sunshine 58.5 



Last snow _ Apr. 1 1 



First snow Nov. 27 



Last frost — May 11 



First frost Sept. 29 



Normal 



30.81 



28.95 



30.01 



1.85 



95.7 

 -12.2 



47.4 

 107.8 



57.8 

 36.5 



Extremes 



W 



67.6 

 51.7 

 116 

 123 

 126 

 2,353 



52.8 



April 15 



Nov. 6 



May 14 



Sept. 21 



31.05, 1920 

 28.41, 1938 



2.47, 1938; 1.38, 1933 



104, 1911 



-26, 1904 



49.8, 1921 ; 44, 1904 



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 



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



Apr. 23, '04; June 8, 'Z2 



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



