Monthly Summary 



February, 1929 



Normal 



Extremes 



Barometer 



(Readings reduced to sea level) 



Maximum 30.48, 13th 



Minimum 29.59, 7th 



Mean semi-daily 29.927, 



Range 89 



Air Temperature 



Highest 54.5, 18th 



Lowest -1, 5th, 24th 



Mean 25.5 



Monthly range 55.5 



Highest mean daily 42, 18th 



Lowest mean daily 9.5, 21st 



Mean maximum 34.6 



Mean minimum 16.3 



Greatest daily range 34, 5th 



Least daily range 4, 28th 



Precipiiatioii 



Precipitation. In inches 3.92 



Snow. In inches 15.0 



Maximum precipitation in 24 hrs. 1.96, 



6th, 7th 

 Number of days on which .01 or 



more inches of rain fell 9 



Wind (miles) 



Total movement 4005 



Greatest daily inovement .... 318, 2nd 



Least daily movement 42, 4th, 5th 



Mean hourly velocity 6.0 



Maximum velocity for 5 min. 24, 1st, 2nd 



(corrected to conform to 3 cup anemometer) 

 Wind (direction) 



Prevailing direction wnw 



North, days .... 



Northeast, days 



East, days 1 



Southeast, days 1 



South, days 3 



Southwest, days 3 



West, days 3 



Northwest, days 17 



Weather 



Mean relative humidity, per cent 77.3 



Mean cloudiness, per cent 47.0 



Number of clear days 11 



Number of fair days 8 



Number of cloudy days 9 



Number of hours bright sumshine . . 135 

 Percent of possible hours of bright 



sunshine 46.0 



30.63 



29.20 



30.03 



1.43 



50.3 

 -7.9 

 23.5 

 58.2 



3.35 

 14.27 



10 

 4833 



7.1 

 29 



77.9 



50.5 



10 



8 



10 



160 



54.4 



31.05, 1920 

 28.56, 1895 



1.89, 1900, 1908 



57.5, 1890 

 -22.5, 1918 



8.12, 1900 

 48.75, 1893, 24 1912 



6445, 1896; 3438, 1892 

 42, 1912 



90, 1889 ; 66.8, 1902 



66, 1890, 1927; 31, 1905 



17, 1924 ; 2, 1927 



16, 1920 ; 3, 1890 



16, 1894; 2, 1920 



221,1924; 110,1927 



Note — Tiie first column in the above summary gives observations made during the 

 month. The second and third columns give the averages and e.xtremes observed from 1S89 



to 1928 for the same month of the year. 



