MONTHLY SUMMARY 



August, 19S4 



Normal 



Extremes 



Barometer 



(Readings reduced to sea level) 



Maximum . 30.50, 31st 



Minimum 29.71, 3rd 



Mean semi-daily 30.028 



Range 0.79 



Air Temperature 



Highest 89, 10th 



Lowest 38, 31st 



Mean 65.0 



Monthly range 51 



Highest mean daily 77, 10th 



Lowest mean daily 54.0, 30th 



Mean maximum v . . . 76.6 



Mean minimum 53.4 



Greatest daily range 38, 7th 



Least daily range 10, 13th, 28th 



t- i'recipitutioii 



Precipitation. In inches 3.02 



Snow^tin inches 



Maximum precipitation in 24 hrs. 1.10, 



24 Lh 

 Number of days on which .01 or more 



inches of rain fell 7 



Wind (miles) 



Total movement 3,027 



Greatest daily movement 230, 20th 



Least daily movement, 34, 16th 



Mean hourly velocity 4.0 



Maximum velocity for 5 min., 22, 5th, 

 20th, 29th 

 (corrected to conform to 3 cup anemometer) 

 Wiiui (direction) 



Prevailing direction s 



North, days 5 



Northeast, days 



East, days 2 



Southeast, days 13 



South, days 2 



Southwest, days 3 



West, days 5 



Northwest, days 1 



Weather 



Mean relative humidity, per cent. . 68.6 



Mean cloudiness, per cent 51.5 



Number of clear days 11 



Number of fair days 11 



Number of cloudy days 9 



Number of hours bright sunshine 222.0 

 Percent of possible hours of bright 



sunshine 52.0 



Thunder and Lightning 22nd 



30.32 



29.63 



30.00 



.69 



91.3 

 42.9 

 68.4 

 48.4 



4.24 



10 

 3,099 



4.2 

 21 



78.4 



49.4 



9 



13 



9 



237.0 



55.2 



30.48, 1918 

 28.87, 1930 



1.49, 1930; 0.44, 1894 



100.0, 1918 

 37.0, 1894, 1908 



8.40, 1928; 0.31, 1894 



16, 1892, 1933; 4, 1889 

 1,271, 1910; 1,920, 1894 



35, 1915 



87.3, 1927; 65, 1929 

 67, 1901; 27, 1923 

 17, 1921; 0, 1915 

 25, 1912; 5, 1893, 1933 

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

 317, 1921; 152, 1915, 1929 



Note— The first coluain In the above summary gives observations made during the 

 month. The second column gives the averages based on observations made from 1889 to 

 1928. The third column gives e.xtremes observed from 1889 to 1983. 



