Monthly Summary 



February. 1938 



Normal 



Extremes 



Barometer 



C Readitig^s reduced to sea level) 



Maximum 30.88, 2nd 



Minimum 29.25, 28th 



Mean semi-daily 30.156 



Range 1.63 



Air Temperature 



Highest 49, 6th 



Lowest 4, 28th 



Mean 28.8 



Range 45 



Highest mean daily 42, 6th 



Lowest mean daily 17,16th 



Mean maximum 36.7 



Mean minimum 20.9 



Greatest daily range 29, 10th, 28th 



Least daily range 5, 13th 



Precipitation 



Precipitation. In inches 1.77 



Snow, in inches 6.00 



Maximum precipitation in 24 hrs. 



.£1, 20th 

 Number of days on which .01 or more 



inches of precipitation fell .... 11 



Wind (miles) 



Tetal movement 4925 



Greatest daily movement .... 453, 28th 



Least daily movement 59, 2nd 



Mean hourly velocity 7.3 



Maximum velocity, 5 min., ... 42, 28th 



Wind (direction) 



Prevailing direction nw 



North, days 4 



Northeast, days 1 



East, days ^0 



Southeast, day* 8 



South, days 3 



Southwest, days 



West, days 2 



Northwest, days 10 



Weather 



Mean relative humidity, per cent.. 59.5 



Mean cloudiness, per cent 65 



Number of clear days 9 



Number of fair days 4 



Number of cloudy days 15 



Number of hours bright sunshine . . 110 

 Percent of possible hours of bright 



sunshine 37.2 



Thunder and lightning 



30.63 



29.20 



30.03 



1.43 



50.3 

 -7.9 

 23.5 



58.2 



3.35 



14.27 



10 

 4,833 



7.1 

 29 



67.4 

 50.5 



10 

 8 



10 

 160 



54.1 



31.05, 1920 

 28.56, 1895 



1.89, 1900, 1908; 88, 1913,1931 



65.0, 1930 

 -22.5, 1918 



8.12, 1900; 0.62, 1901 

 48.75, 1898;2.5,1912 



15, 1893, 1920-4, 1901 

 6,445, 1896; 3,438, 1892 



48, 1937 



66, 1890, 1927; 31, 190?^ 



17, 1924; 2, 1927 



16, 1920; 2, 193R 



16, 1894; 2, 1920 



221,1924; 110 1927 



NOTK— The first column In the above suuimary slveg obiervationt made during the 

 month. The second column irives the averaues baged on ob«ervaUoni made from ie«9 

 to 192s, e.Tcept that luimidity records are based on observations made from 19U9 to 1WS7. 

 The third column sives extremes observed from 1889 te 1987 



