MONTHLY SUMMARY 



March, 1945 



Barometer, in inches 



(Readings reduced to sea level) 



Maximum 30.37, 5th 



Minimum ._. 29.45, 31st 



Mean semi-daily _ 30.001 



Range 0.92 



Air Temperature, in degrees F. 



Highest 85, 29th 



Lowest .15, 5th 



Mean 44.4 



Range 70 



Highest mean daily 70.5, 29th 



Lowest mean daily 29.5, 5th 



Mean maximum ...: 56.2 



Mean minimum 32.6 



Greatest daily range 42, 27th 



Least daily range 4, 22nd 



Precipitation, in inches 



Precipitation 2.16 



Snow 2.50 



Maximum precipitation in 24 hrs. 45, 6th 



Number of days with .01 or more 11 



Wind, in miles 



Total movement 4169 



Greatest daily movement 304, 30th 



Least daily movement 22, 10th 



Mean liourly velocity 5.6 



Maximum velocity 32, 24th 



Wind, direction 



Prevailing direction WNW 



North, days 2 



Northeast, days 



East, days 3 



Southeast, days 8 



South, days 



Southwest, days 2 



West, days 6 



Northwest, days 10 



Weather 



Mean relative humidity, percent 67.5 



Mean cloudiness, percent 53 



Number of clear days 17 



Number of fair days 5 



Number of cloudy days .. 9 



Number hours bright sunshine 226 



Percent of possible hours of bright 



sunshine . 60.9 



Tliunder and Hgbtning — 



Normal 



30.57 



29.24 



30.00 



1.34 



63.8 

 6.1 



34.4 

 57.6 



43.2 

 25.4 



3.70 

 7.47 



11 



5944 



31.2 



WNW 



64.2 



51.8 



11 



10 



10 



199 



53.6 



Extremes 



31.05, 1943 

 28.47, 1914 



2.10, 1914; 0.85. 1915 



79.5, 1907, 1921 

 -7.5, 1906 



7.89, 1942; 0.12, 1915 

 27, 1899; 0, 1921 



17, 1890, 1913, 1936; 3,1915 

 8182, 1896; 3006, 1905 



48. 1932, 1939, 1941, 1942 



68, 1901 ; 27, 1915 



22, 1924; 3, 1901 



17. 1900; 1, 1943 



21, 1901; 1, 1915 



292. 1924; 93, 1901 



Note — 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 1938, except that humidity records are based on observations made 

 from 1929 to 1938. The third column gives extremes observed from 1889 to 1944. 



