Annual Summary 



Annual 1938 



Barometer 



(Readings reduced to sea level) 



Maximum 30.88, Feb. 2 



Minimum 28.41, Sept, 21 



Mean semi-daily 30.04(; 



Range ". 2.47 



Air Temperature 



Highest 93, Aug. 3 and 15 



Lowest -12, Jan. 19 



Mean 49.2 



Monthly range 105 



Highest mean daily 82.5, Aug. 16 



Lowest mean daily 3.0, Jan. 18 



Mean maximum 59.4 



Mean minimum 39.0 



Greatest daily range 45, Mar. 22 



Least daily range 3 



Precipitation 



Precipitation, inches 59.00 



Snow, inches 42.50 



Maximum precipitation in 



24 hrs 5.17, Sept. 20 and 21 



Number of days on which .01 or 



more inches of precipitation fell 126 

 Wind (miles) 



Total movement 48,765 



Greatest daily movement 453, Feb. 28 

 Least daily movement .... 25, Dec. 24 



Mean hourly velocity - 5.6 



Maximum velocity 80, Sept. 21 



Wind (direction) 



Prevailing direction w 



North, days 49 



Northeast, days 5 



East, days "^ 



Soutlieast, days 57 



South, days 73 



Southwest, days 20 



West, days 3P, 



Northwest, days 113 



Weather 

 Mean relative humidity, per cent 67.2 



Mean cloudiness, per cent 56.6 



Number of clear days 153 



Number of fair days 97 



Number of cloudy days 115 



Number of hours bright sunshine 2431 

 Per cent of possible hours of 



bright sunshine 54.6 



Last frost Mav 31 



First frost Sept. 10 



Last snow April 10 



First snow Nov. 14 



43.49 

 48.38 



123 

 52,321 



6.0 

 35 



167.6 1 



150.8 i 



I 109 I 

 I 128 



i 128 I 



12,356 I 



J I 



153.0 I 



iM'vl2! 

 i S't 19| 

 |Aprl4i 

 I Nov 51 



57.05, 1897; 30.68, 1908 

 78.00, 1920; 24.50, 1919 



144, 1902; 96, 192-^ 

 63,571, 1908; 36,257, 1894 



48, 1932, 1934, 1937 



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



169, 1932; 59, 1927 



182, 1912; 83, 1894 



179, '01, '02; 71, 1910 



2,838, 1924; 1,864, 1902 



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



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



Mar.l4, '10; Mav5, '91, '17 



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



Note-;— The first column in the above summary gives observations made 

 during the year. The second column gives the averages based on ob- 

 servations made from 1889 to 1928, except that humidity records are 

 based on observations made from 1929 tp 1937. The thiid column gives 

 extremes observed from 1889 to 1937.- ,'^' 



