Monthly Summary 



March. 1986 



Normal 



Extremes 



Barometer 



( Readings reduced to sea level) 



Maximum 30.43, 8th 



Minimum 29.08, 21st 



Mean semi-daily 29.941 



Range 1.35 



Air Temperature 



Highest 72, 30th 



Lowest 3, 8th 



Mean 40.9 



Monthly range 69 



Highest mean daily .... 56, 18th & 30th 



Lowest mean daily 20.5, 7th 



Mean maximum 49.6 



Mean minimum 32.2 



Greatest daily range 36, 8th 



Least daily range 6, 18th, 22nd 



Precipitation 



Precipitation. In inches 7.04 



Snow, in inches 4.75 



Maximum precipitation in 24 hrs. 



2.13, 18th 

 Number of days on which .01 or more 



inches of precipitation fell ... 17 



Wind (miles) 



Total movement 4,432 



Greatest daily movement .... 368, 22nd 



Least daily movement 36, JOth 



Mean hourly velocity 6.0 



Maximum velocity for 5 min., 27, 28th 



Wind (direction) 



Prevailing direction sw 



North, days 6 



Northeast, days 



East, days 2 



Southeast, days 5 



South, days 8 



Southwest, days 2 



West, days 3 



Northwest, days 5 



Weather 



Mean relative humidity, per cent. . 71.2 



Mean cloudiness, per cent 59.0 



Number of clear days 13 



Number of fair days 4 



Number of cloudy days 14 



Number of hours bright sunshine . 170 

 Percent of possible hours of bright 



sunshine 45.8 



Thunder and Lightning 21st 



Frosts 



30.60 



29.26 



30.02 



1.35 



63.9 



5.7 

 34.2 

 58.2 



11 



5,738 



7.7 

 29 



63.5 

 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 



3.68 7.13, 1899; 0.12, 1915 

 8.11 27, 1899; 0, 1921 



17, 1890, 1913; 3, 1915 

 7,628, 1932; 3,006, 1905 



48, 1932 



68, 1901; 27, 1915 



22, 1924; 3, 1901 



17, 1900; 4, 1895 



21, 1901; 1,1915 



292, 1924; 93, 1901 



NOTK— The first column in the above summary gives observations made during the 

 month. The second column gives the averages based on observations made from 1889 

 to 19'.?8. except that humidit.v records are based on observations made from 1929 to la.SS 

 The third column gives extremes observed from 1889 to 1985. 



