Monthly Summary 



Octobei 1937 



Barometer 



(Readings reduced to sea level) 



Maximum 30.67, 17th 



Miaimum 29.34, 23rd 



Mean semi-daily 30.051 



Range 1.33 



Air Temperature 



Highest 76, 6th 



Lowest 21, 17th 



Mean 49.6 



Monthly range 55 



Highest mean daily 70.5, 6th 



Lowest mean daily 37.0, 15th 



Mean maximum 59.7 



Mean minimum 39.5 



Greatest daily range 35, 12th, 18th 



Least daily range 3, 28th 



Precipitation 



Precipitation. In inches 4.33 



Snow, in inches 



Maximum precipitation in 24 hrs. 



1.83, 19th, 20th 

 Number of days on which .01 or more 



inches of precipitation fell ... 10 



"Wind (miles) 



Total movement 4,636 



Greatest daily movement 326, 30th 



Least daily movement 53, 17th 



Mean hourly velocity 6.2 



Maximum velocity, 5 min., 42, 30th 



Wind (direction) 



Prevailing direction sw 



North, days 1 



Northeast, days 



East, days 



Southeast, days 5 



South, days 9 



Southwest, days 1 



West, days 7 



Northwest, days 8 



Weather 



Mean relative humidity, per cent . . 69.6 



Mean cloudiness, per cent 52 



Number of clear days 13 



Number of fair days 9 



Number of cloudy days 9 



Number of hours bright sunshine . . 191 

 Percent of possible hours of bright 



sunshine 56 



Frosts . 9th, 14th, 15th, 16th, 17th, 18th 



25th, 26th 



First frost 9th 



Normal 



30.53 



29.42 



30.059 



Lll 



79.7 

 23.4 

 50.4 

 56.3 



Extremes 



3.35 



4,023 



5.4 

 27 



69.2 



47.6 



8 



11 



12 



171.0 



50.1 



30.68, 1929 

 29.00, 1926 



1.47, 1926; 0.76, 1899 



90.5, 1908 

 17, 1936 



8.81, 1911; 0.01, 1924 



15, 1913; 1, 1897, 1924 

 5,467, 1910; 2,540, 1894 



39, 1934, 1935 



67, 1932; 18, 1924 



16, 1934; 1, 1911 



17, 1924; 4, 1936 

 19, 1896; 3, 1924 



232, 1923; 91, 1913 



19th Aug. 22, '94, '95; Oct. 13, '09 



NOTK— The first coluiun in tlie above summary gives observations made diirinc the 

 month. The second oolumn irives the averages leased on observations made from 1889 

 to 1928. except that humidity records are based on observations made from 1929 to 1986 

 Che third column gives extremes observed from 1889 to 1986 



