Monthly Summary 



! December, 1932 



Normal 



Extremes 



Barometer 



(Readings reduced to sea level) 



Maximum 30.68, 17th 



Minimum 29.34, 31st 



Mean semi-daily 30.189 



Range 1.34 



Air Temperature 



Highest 64, 7th 



Lowest -11, 17th 



Mean 30.2 



Monthly range 75 



Highest mean daily 54.5, 7th 



Lowest mean daily 0.5, 17th 



Mean maximum 39.3 



Mean minimum 21.1 



Greatest daily range 37, 31st 



Least daily range ... 5, 28th 



Precipitation 



Precipitation. In inches 1.99 



Snow, in inches 8.50 



Maximum precipitation 24 hrs. .73, 27th, 



28th 

 Number of days on which .01 or more 



inches of rain fell 13 



Wind (mites) 



Total' movement 4,346 



Greatest daily movement 354, 8th 



Least daily movement 20, 29th 



Mean hourly velocity 6.0 



Maximum velocity for 5 min. 32, 31st 



(corrected to conform to n cui' anesuometer) 



Wind (direction) 



Prevailing direction wsw 



North, days 1 



Northeast, days 



East, days 2 



Southeast, days 9 



South, days 3 



Southwest, days 1 



West, days 5 



Northwest, days 10 



Weather 



Mean relative humidity, per cent . . 68.6 



Mean cloudiness, per cent 69.5 



Number of clear days 8 



Number of fair days 8 



Number of cloudy days 15 



Number of hours bright suhshine 104.5 

 Percent of possible hours of bright 



sunshine 37 



Thunder and Lightning 



30.65 



29.25 



30.056 



1.40 



54.5 

 -2.3 

 27.3 

 56.8 



3.47 

 8.99 



4,726 



6.4 

 29 



77.2 

 53.4 

 8 

 10 

 13 

 130.7 



46.0 



30.96, 1889 

 28.85, 1915 



1.78, 1895; 1.01, 1892 



65.5, 1908 

 -22.5, 1917 



7.77, 1901; 0.87, 1896 

 26.50, '01, '02; t, 1891 



17, 1902; 4, 1892 



6,694, 1925; 3,239, 1918 



41, 1928 



87.1, 1919; 63, 1931 



68, 1897; 39, 1919 



15, 1890; 2, 1922 



16, 1909; 4, 1889, 1930, 1931 



19, 1911, 1922; 7, 1909, 1923 



172, 1896; 86, 1922 



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

 month. The second column (rives averages based on observations made from 1889 to 

 192S. The third column gives extremes observed from !;<»<) to l'.»31. 



