Monthly Summary 



March, 1984 



Normal 



Extremes 



Barometer 



(Readings reduced to sea level) 



Maximum 30.68, 1st 



Minimum 29.47, 5th 



Mean semi-daily 30.142 



Range 1.21 



Air Temperature 



Highest 61, 5th 



Lowest ■ • 5, 1st 



Mean 30.9 



Monthly range 56 



Highest mean daily 47, 5th 



Lowest mean daily 15.5, 10th 



Mean maximum 40.9 



Mean minimum 21.2 



Greatest daily range 35, 2nd 



Least daily range 5, 4th 



Precipitation 



Precipitation. In inches 3.60 



Snow, in inches 5.50 



Maximum precipitation in 24 hrs. .63, 



31st 

 Number of days on which .01 or more 



inches of rain fell 13 



Wind (miles) 



Total movement 4,979 



Greatest daily movement .... 311, 22nd 



Least daily movement, 54, 4th 



Mean hourly velocity 6.7 



Maximum velocity for 5 min., 32, 22nd 

 (corrected to conform to 3 cup anemometer) 



Wind (direction) 



Prevailing direction w 



North, days 2 



Northeast, days 



East, days 1 



Southeast, days 8 



South, days 4 



Southwest, days 1 



West, days 9 



Northwest, days 6 



Weather 



Mean relative humidity, per cent . . 60.7 



Mean cloudiness, per cent 55.0 



Number of clear days 11 



Number of fair days 9 



Number of cloudy days 11 



Number of hours bright sunshine 193.7 

 Percent of possible hours of bright 



sunshine 52.0 



Thunder and Lightning 



Frosts 



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 

 7,628, 1932; 3,006, 1905 



48, 1932 



86.8, 1916; 59.5, 1932 



68, 1901; 27, 1915 



22, 1924; 3, 1901 



17, 1900; 4, 1895 



21, 1901; 1, 1915 



292,1924; 93,1901 



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

 month. The second column erives the averages based on observations made from 18(<9 to 

 19'28. The tbird column gives extremes observed from 1889 to 1983. 



