Monthly Summary 



October. 19S6 



Normal 



Extremes 



Barometer 



( Readings reduced to sea level) 



Maximum 30.61, 16th 



Minimum 29.59, 3rd 



Mean semi-daily 30.177 



Range 1.02 



Air Temperature 



Highest 73, 22nd, 28th 



Lowest 23, 17th 



Mean 50.4 



Monthly range 50 



Highest mean daily 62.5, 22nd 



Lowest mean daily 36, 25th 



Mean maximum 63.7 



Mean minimum 37.1 



Greatest daily range 47, 17th 



Least daily range 9, 31st 



Precipitation 



Precipitation. In inches 0.88 



Snow, in inches 



Maximum precipitation in 24 hrs. 0.46, 



22nd, 23rd 

 Number of days on which .01 or more 



inches of rain fell 7 



Wind (miles) 



Total movement 4007 



Greatest daily movement 289, 24th 



Least daily movement 49, 13th 



Mean hourly velocity 5.4 



Maximum velocity for 5 min., 39, 15th, 

 19th 



Wind (direction) 



Prevailing direction sw 



North, days 5 



Northeast, days 1 



East, days 1 



Southeast, days 9 



South, days 2 



Southwest, days 4 



West, days 3 



Northwest, days 6 



Weather 



Mean relative humidity, per cent . . . 64.9 



Mean cloudiness, per cent 42.6 



Number of clear days 15 



Number of fair days ... 5 



Number of cloudy days 11 



Number of hours bright sunshine . . 203 

 Percent of possible hours of bright 



sunshine 59.6 



Thunder and Lightning 23rd 



Frosts, 3rd, 7th, 8th, 10th, 12th, 16th, 

 17th, 21st, 25th 



30.53 



29.42 



30.059 



1.11 



79.7 

 23.4 

 50.4 

 56.3 



30.68, 1929 

 29.00, 1926 



1.47, 1926; 0.76, 1899 



90.5, 1908 

 18.0, 1904 



3.35 8.81, 1911; 0.01, 1924 



4,023 



5.4 

 27 



15, 1913; 1, 1897, 1924 

 5,467, 1910; 2,540, 1894 



39,1934 



69.0 

 47.6 

 8 

 11 

 12 

 171.0 



50.1 



86.7, 1920; 64, 1929 

 67, 1932; 18, 1924 

 16, 1934; 1, 1911 

 17,'24;5,'94,'96,'98,'03,'17'34 

 19, 1896; 3, 1924 

 232,1923; 91, 1913 



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 18n9 to 

 1928. except that humidity records are based on observations from 1929 to 1934 The 

 third column gives extremes observed from 1889 to 1984. 



