Monthly Summary 



March, 1933 



Barometer 



( Readings reduced to sea level) 



Maximum 30.37, 16th 



Minimum 28.99, 8th 



Mean semi-daily 29.918 



Range 1.38 



Air Temperature 



Highest 57, 17th 



Lowest 7, 11th 



Mean 32.9 



Monthly range 50 



Highest mean daily 42.5, 17th 



Lowest mean daily 16, 11th 



Mean maximum 39.3 



Mean minimum 26.5 



Greatestdaily range 29, 17th, 31st 



Least daily range 3, 1st, 14th 



Precipitation 



Precipitation. In inches 4.79 



Snow, in inches 6.00 



Maximum precipitation 24 hrs. 1.80, 



20th, 21st 

 Number of days on which .01 or more 

 inches of rain fell 14 



Wind (miles) 



Total movement 6,988 



Greatest daily movement 454, 10th 



Least daily movement 60, 7th 



Mean hourly velocity 9.4 



Maximum velocity for 5 min. ... 45, 9th 



(coi recteii to eonfuim to 3 euj) aneuioiiietei) 

 Wiinl (direction) 



Prevailing direction nw 



North, days 3 



Northeast, days 



East, days 



Southeast, days 1 



South, days 1 



Southwest, days 



West, days 4 



Northwest, days 22 



Weather 



Mean relative humidity, per cent . . 60.3 



Mean cloudiness, per cent 60 



Number of clear days 12 



Number of fair days 6 



Number of cloudy days 13 



Number of hours bright sunshine 168.8 

 Percent of possible hours of bright 



sunshine 46 



Thunder and Lightning 21st 



Normal 



Extremes 



30.60 



29.26 



30.02 



1.35 



63.9 



5.7 

 34.2 

 58.2 



3.68 

 8.11 



11 



5,738 



7.7 

 29 



75.0 

 51.0 

 11 

 9 

 11 

 201 



54.2 



30.96, 1904 

 28.47, 1914 



2.10, 1914; 0.85, 1915 



79.5,1907, 1921 

 -7.5, 1906 



7.13, 1899; 0.12, 1915 

 27, 1899; 0, 1921 



17, 1890, 1913; 3, 1915 



7,485, 1911; 3,006, 1905 



39, 1913 



86.8, 1916; 61.6, 1930 



68, 1901; 27, 1915 



22, 1924; 3, 1901 



17, 1900; 4, 1895 



21, 1901; 1, 1915 



292, 1924; 93, 1901 



NOTR— Tlie first oolninn in the above snmiiiar.v gives observations made during the 

 month. The second column unves theaveraues based on observuiions made from is 9 to 

 1928. The tliird colimin uives extremes observed from Ikwi to 1982. 



