MONTHLY SUMMARY 



October, 1945 



30.53 



29.42 



30.06 



1.11 



79.4 

 23.4 

 50.5 

 56.0 



Barometer, in inches 



(Readings reduced to sea level) 



Maximum .-„. 30.54, 1st 



Minimum ._....„ 29.55, 2nd, 9th 



Mean semi-daily 30.004 



Range 99 



Air Temperature, in degree* F. 



Highest 81, 19th 



Lowest 25, 4th 



Mean 49.5 



Range 56 



Highest mean daily 61.5, 7th, 8th 



Lowest mean daily 40.0, 3rd, 4th 



Mean maximum 60.9 



Mean minimum 38.0 



Greatest daily range 40, 18th, 19th 



Least daily range .8, 24th 



Precipitation, in inches 



Precipitation 2.18 



Snow - - — 



Maximum precipitation in 24 hrs. -.__.63, 9th 

 Number of days with .01 or more 11 



Wind, in miles 



Total movement 3630 



Greatest daily movement 336, 3rd 



Least daily movement 31, 1st 



Mean hourly velocity 4.9 



Maximum velocity 39, 3rd 



Wind, direction 



Prevailing direction SSW 



North, days 



Northeast, days 



East, days 



Southeast, days .- 13 



South, days 2 



Southwest, days 3 



West, days 5 



Northwest, days 8 



Weather 



Mean relative humidity, percent 72>.2) 



Mean cloudiness, percent 52 



Number of clear days 7 



Number of fair days — 10 



Number of cloudy days ___.14 



Number hours bright sunshine 139 



Percent of possible hours of bright 



sunshine _ _.40.8 



Thunder and lightning _... 12th 



First frost Oct. 4 i Sept. 21 



Normal 



3.29 

 9 



4074 



5.4 

 29.5 



W 



69.0 

 48 

 10 

 10 

 11 



175.0 



51.3 



Extremes 



30.68, 1929 

 29.00, 1926 



1.47, 1926; .76, 1899 



90.5, 1908 



17, 1936 



56.4, 1920; 43.2, 1890 



8.81, 1911; .01, 1924 



15, 1913; 1, 1897, 1924 



5,467, 1910; 2,540, 1894 



42, 1937 



67, 1932; 18, 1924 



21, 1938; 1, 1911 



17, 1924; 3. 1938 



19, 1896; 3, 1924 



232, '23, '38; 91, 1913 



Aug. 22, '94, '95 ; Oct. 15, '39 



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 1944. 



