Monthly Summary 



September, 1985 



Normal 



Barometer 



( Readings reduced to sea level) 



Maximum 30.37, 24th 



Minimum 29.49,29th 



Mean semi-daily 30.045 



Range 0.88 



Air TemperaMire 



Highest 82, 1st 



Lowest 30, 24th 



Mean 59.1 



Monthly range 52 



Highest mean daily 67.5, 19th,27th 



Lowest mean daily 49, 24th 



Mean maximum 70.0 



Mean minimum 48.3 



Greatest daily range 38, 24th 



Least daily range 3, 4th 



Precipi<a<ioii 



Precipitation. In inches 4.67 



Snow, in inches 



Maximum precipitation in 24 hrs. 2.42, 



4th 

 Numb- of days on which .01 or more 

 inches of rain fell 7 



Wind (miles) 



Total movement 3177 



Greatest daily movement 217, 15th 



Least daily movement 40, 2nd 



Maan hourly velocity 4.4 



Maximum velocity for 5 min., 28,16th 



Wind (direction) 



Prevailing direction sw 



North, days 4 



Northeast, days 1 



East, days 1 



Southeast, days 7 



South, days ' 



Southwest, days 2 



West, days 2 



Northwest, days 7 



Weather 



Mean relative humidity, per cent. . .7.''.0 



Mean cloudiness, per cent 57.5 



Number of clear days 12 



Number of fair days 5 



Number of cloudy days ■• .^ 



Number of hours bright sunshine .. 179 

 Percent of possible hours of bright 



sunshine 48 



Frosts 17th, 24th 



First Frost 17th 



30.45 



29.59 



30.068 



.86 



87.4 

 32.8 

 61.6 

 54.6 



Extremes 



3.79 



9 



3,252 



4.5 

 22 



73.2 

 48.7 

 9 

 11 

 10 

 202.5 



54.4 



19th 



30.65, 1924 

 29.32, 1900 



1.20, 1904; 0.57, 1910 



97.0, 1895, 1929 

 24.5, 1914 



12.34, 1933 ; 0.52, 1914 



15, 1918; 3, 1903 

 4,686,1896; 1,414, 1894 



39, 1916, 1934 



89, 1927; 68, 1932 

 70.0, 1934; 27, 1908, 1914 

 19, 1932; 2, 1907, 1928 

 19, 1908; 3, 1889 

 20, 1934; 4, '08, '16 

 255,1916; 106, 1934 



Aug.22,'94,'95;Oct.l3,'09 



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

 month. The second column urives theaveraaes based on observations made from 18s<9io 

 IS.'S. except that hiiiniditv records are based on observations from 1929 to 1934. The 

 third column gives extremes observed from 1889 to 1934. 



