MONTHLY SUMMARY 



September, 1944 



Barometer, in inches 



(Readings reduced to sea level) 



Maximum ...30.53, 18th 



Minimum 29.13, 14th 



Mean semi-daily 30.029 



Range 1 .40 



Air Temperature, in degrees F. 



Highest 89, 2nd 



Lowest ^ 33, 24th 



Mean 63.0 



Range 56 



Highest mean daily 77.0, 2nd 



Lowest mean daily 47.5, 23rd 



Mean maximum 73.9 



Mean minimum 52.2 



Greatest daily range 36, 11th 



Least daily range 6, 13th 



Precipitation, in inches 



Precipitation 5.31 



Snow — 



Maximum precipitation in 24 hrs.... 2.66, 14th 

 Number of days with .01 or more 11 



Wind, in miles 



Total movement 3152 



Greatest daily movement 321, I5th 



Least daily movement 35, 19th 



Mean hourly velocity , .... 4.4 



Maximum velocity 55, 14th 



Wind, direction 



Prevailing direction WSW 



North, clays 



Northeast, days - 1 



East, days 4 



Southeast, days 6 



South, days 



Southwest, days 5 



West, days _ — 8 



Northwest, days 6 



"Weather 



Mean relative humidity, percent 76.2 



Mean cloudiness, nercent 56 



Number of clear days 13 



Number of fair days .- 7 



Number of cloudy days 10 



Number hours bright sunshine 207 



Percent of possible hours of bright 



sunshine - - 55.5 



Thunder and lightning 1st, 2nd, 21st 



First Frost Sept. 21 



Normal 



30.45 



29.57 



30.06 



.88 



87.7 

 33.2 

 61.7 



54.5 



4.24 

 10 



3271 



4.5 

 25.9 



WSW 



Extremes 



30.65, 1924 

 28.41, 1938 



1.99, 1938; .57, 1910 



97, 1895, 1929 

 24.5, 1914 



14.55, 1938; .52, 1914 



16, 1933; 3, 1903 



4,686, 1896; 1,414, 1894 



80, 1938 



70, 1934; 27, 1908, 1914 

 19, 1932; 2. 1907, lO'S 



19, 1908: 3, 1889 



20. 1934: 3. 19J1 

 255, 1916: 106, 1934 



Aug. 22, '94, '95; Oct. 13. '09 



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

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

 from 1889 to 1938, except thait humidity records are based on observations made 

 from 1929 to 1938. The third column gives extremes observed from 1889 to 1943. 



