Monthly Summary 



August 1929 



Normal 



Extremes 



Barometer 



(Readings reduced to sea level) 



Maximum 30.30, 21st 



Minimum 29.46, 4th 



Mean semi-daily 29.968 



Range 84 



Air Temperature 



Highest 90.0,12th 



Lowest 41.0, 21st 



Mean 66.5 



Monthly range 49.0 



Highest mean daily 77.7, 12th 



Lowest mean daily 58.2,29th 



Mean maximum 79.1 



Mean minimum 53.9 



Greatest daily range 41.0, 26th 



Least daily range 6.5, 11th 



Precipitation 



Precipitation. In inches 1.54 



Maximum precipitation in 24 hrs. .59, 



3rd 

 Number of days on which .01 or 



more inches of rain fell 9 



Wind (miles) 



Total movement 3839 



Greatest daily movement 259, 4th, 5th 



Least daily movement 45, 8th 



Mean hourly velocity 5.1 



Maximum velocity for 5 min 33, 4th 



(corrected to cunforni ti> 3 cup anemometer) 

 Wind (direction) 



Prevailing direction wsw 



North, days 2 



Northeast, days 



East, days 



Southeast, days 10 



South, days 2 



Southwest, days 2 



West, days 7 



Northwest, days 8 



Weather 



Mean relative humidity, per cent 65.0 



Mean cloudiness, per cent 47 



Number of clear days 



Number of fair days 18 



Number of cloudy days 13 



Number of hours bright sunshine 151.6 

 Percent of possible hours of bright 



sunshine 35.0 



Thunder and lightning .... 19th, 23rd 



30.32 



29.63 



29.972 



0.69 



91.3 

 42.9 

 68.4 



48.4 



4.24 



10 



3099 



4.2 

 21 



78.4 

 49.4 



9 

 13 



9 

 236 



55 



30.48, 1918 

 29.18, 1890 



1.10, 1890; 0.44, 1894 



100, 1918 

 37, 1894, 1908 



8.28, 1915; 31,1894 



16, 1892; 4, 1899 

 4271, 1910; 1920, 1894 



35, 1915 



87.3, 1927 ; 69.9, 1894 



67, 1901 ; 27, 1923 



17, 1921; 0, 1915 



25, 1912; 5, 1893 



18, '01, '28; 2, '10, '23 



317, 1921 ; 152, 1915 



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

 month. The second and third columns give the averages and extremes observed from 1889 

 to IQ28 for the same month of the year. 



