Monthly Summary 



August, 1981 



Baromeier 



(Readings reduced to sea level) 



Maximum 30.37, 14th 



Minimum 29.37,29th 



Mean semi-daily 29.989 



Range 1.00 



Air Temperature 



Highest 96, 7th 



Lowest 46, 2nd 



Mean 69.6 



Monthly range 50 



Highest mean daily 80.0, 7th 



Lowest mean daily 60.0, 2nd 



Mean maximum 79.5 



Mean minimum 58.7 



Greatest daily range 34, 25th 



Least daily range 5, 12th 



Precipitation 



Precipitation. In inches 6.57 



Snow, in inches 



Maximum precipitation in 24 hrs. 3.51, 



27th, 28th 

 Number of days on which .01 or 



more inches of rain fell 13 



Wind (miles) 



Total movement 2,932 



Greatest daily movement .... 177, 24th 



Least daily movement 52, 18th 



Mean hourly velocity 4.0 



Maximum velocity for 5 min 32, 17th 



(t'orreeted to conform to H cuii aneuioineter) 

 Wind (direction) 



Prevailing direction wnw 



North, days 5 



Northeast, days 1 



East, days 1 



Southeast, days 3 



South, days 6 



Southwest, days 3 



West, days 1 



Northwest, days 11 



Weather 



Mean relative humidity, per cent . . 72.9 



Mean cloudiness, per cent 55 



Number of clear days 9 



Number of fair days 12 



Number of cloudy days 10 



Number of hours bright sunshine 192.7 

 Percent of possible hours of bright 



sunshine 45 



Thunder and lightning 3rd, 19th, 26th 



27th, 28th 



Normal 



30.32 



29.63 



29.972 



.69 



91.3 

 42.9 

 68.4 

 48.4 



4.24 



10 



3,099 



4.2 

 21 



78.4 



49.4 



9 



13 



9 



236 



55 



Extremes 



30.48, 1918 

 29.18, 1890 



1.10, 1890; 0.44, 1894 



100, 1918 

 37, 1894, 1908 



8.28, 1915; 0.31, 1894 



16, 1892; 4, 1899 

 4,271, 1910; 1,920, 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, 1929 



Note— The first coluiiin in the above summary grives observations made durinK the 

 month. The second column cives averaues based on observations made from ISH'J to 

 1928. The thij-d column sives extremes observed from isai) to 1930. 



