MONTHLY SUMMARY 



Ar.oust, 1943 



Barometer, in inches 



(Readings reduced to sea level) 



Maximum 30.15, 29th 



^Minimum 29.51, 17th 



Mean semi-daily 29.910 



I^ange 0.64 



Air Temperature, in degrees F. 



Highest 92, 2nd 



Lowest 45, 27th 



Mean 68.9 



Range 47 



Higliest mean daily ._ 79.5, 3rd 



Lowest mean daily 56.0, 27th 



Mean maximum _..: _• 80.2 



Mean minimum 57.7 



Greatest daily range 36, 20th 



Least daily range 8, 10th 



Precipitation, in inches 



Prccipitatiion ._ 2.49 



Snow . . — 



Maximum precipitation in 24 hrs. 



91, 12th, 13th 



Number of days with .01 or more 11 



Wind, in miles 



Total movement 2819 



(Greatest daily movement 169, i4th 



Least daily movement 38, 20th 



]\[ean hourly velocity ,.,-3.8 



Afaximum velocity 22, 6th,' 18th 



Wind, direction 



Prevailing direction W 



Noi th, days .__...____._. _.0 



Northeast, days 



East, days--..:...-..— .'. .. 2 



Southeast, days .— -. , 9 



South, days -. ,-: . —- . 2 



Southwest, days -....-—-_ ._._.__...... ^.-....5 



West, ' days '.:...—..., : —:..:'.'. __:.4 



Northwest, days ■ - .9 



Weather 



Mean relative humidity, percent '...- -.77.4 



Mean cloudiness, percent ...56 



Number of clear days 18 



Number of fair days 10 



Number of cloudy days 3 



Number hours bright sunshine 307 



Percent of possible hours of bright 



sunshine ...-71. 5 



Thunder and lightning ..3rd, 12th 



First frost -. - - — - — 



Normal 



30.32 



29.61 



30.00 



0.71 



91.6 

 43.4 

 68.6 

 48.1 



4.08 



11 



3127 



4.2 

 22 7 



SW 



70.2 



49.7 



9 



13 



9 



237 



55.2 

 Sept. 21 



Extremes 



30.50, 1934 

 28.87, 1930 



100, 1918 



37, 1894, 1908 



34, 1940 



8.40, 1928; .31, 1894 



16, 1892, 1933; 4. 1899 



4,271, 1910; 1,920, 1894 



40, 1941 



67, 1901; 27, 1923 



23, 1941; 0, 1915, 1929 



25, 1912; 3, 1939 



18, 1901, '28; 2, 1910, '23 



332, 1941 ; 152, 1915, 1929 



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 that humidity records are based on observations made 

 from 1929 to 1938. The third column gives extremes observed from 1889 to 1942. 



