Monthly Summarv 



April, 1932 



Normal 



Extremes 



Barometer 



(Readings reduced to sea level) 



Maximum 30.40, 5th 



Minimum 29.17, 12th 



Mean semi-daily 29.917 



Range 1.23 



Air Temperature 



Highest 75, 22nd 



Lowest 24, 5th 



Mean 44.4 



Monthly range 51 



Highest mean daily 59.5, 29th 



Lowest mean daily 34, 15th 



Mean maximum 54.6 



Mean minimum 34.2 



Greatest daily range 37, 20th 



Least daily range 5, 11th 



Precipitation 



Precipitation. In inches 2.33 



Snow, in inches T 



Maximum precipitation 24 hrs. 1.30, 



12th 

 Number of days on which .01 or more 



inches of rain fell 10 



Wind (miles) 



Total movement 5,956 



■Greatest daily movement 472,17th 



Least daily movement 82, 9th 



Mean hourly velocity 8.3 



Maximum velocity for 5 min. . . 39, 17th 



(coireL'teii to conform to ;s cup anemometer) 

 Wind (direction) 



Prevailing direction wnw 



North, days .... 1 



Northeast, days 2 



East, days 1 



Southeast, days 2 



South, days 5 



Southwest, days 1 



West, days 5 



Northwest, days 13 



Weather 



Mean relative humidity, per cent . . 60.1 



Mean cloudiness, per cent 57.0 



Number of clear days 13 



Number of fair days 5 



Number of cloudy days 12 



Number of hours bright sunshine 211.8 

 Percent of possible hours of bright 



sunshine 53 



Thunder and Lightning 26th 



Frosts after the 15th: 16th, 24th, 25th, 



27th, 28th. 



30.48 



29.41 



29.99 



1.08 



79.5 

 21.6 

 45.8 



57.8 



3.27 

 2.32 



11 



5,436 



7.5 

 29 



69.6 

 49.2 

 11 

 10 

 9 

 221 



55 



30.71, 1911 

 29.07, 1930 



1.52, 1930; 0.72, 1919 



88.5, 1896 

 8.5, 1923 



6.89, 1929; 0.76, 1892 

 11, 1891; 0, 1910 



18, 1909; 3, 1892 



8,208, 1908; 3,853, 1917 



39, 1916, 1931 



81.2> 1916; 54.5, 1892 



75, 1901 ; 34, 1925, 1927 



19, 1911; 3, 1898,1902 



18, 1915; 2, 1894, 1901 



22, 1901; 3, 1899, 1924 



296, 1911; 103, 1901 



NOTK— The first column in the above summary stves observations made durintr tlie 

 month. The second ct)lumn (fives averaees based on observations made from 18»9 to 

 lyiis. The third column gives e.xtremes observed from l»8'.i to 1931. 



