MONTHLY SUMMARY 



OCTOBER 1950 



Normal 



Barometer, in inches 



(Readings reduced to sea level) 



Maximum 30.592, 16th 



Minimum . . ._ 29.401, 12th 



Mean semi-daily 30. 1 16 



Range 1.191 



Air Temperature, in Degrees F. 



Highest 84, 1st 



Lowest 22, 27th 



Mean 54.2 



Range 62 



Highest mean daily 68, 2nd, 3rd 



Lowest mean daily 36.5, 28th 



Mean maximum 65.4 



Mean minimum 43.4 



Greatest daily range 38, 6th 



Least daily range 2, 12th 



Degree-days of heating load for month. . 344 

 Degree-days cumulative for season 553 



Precipitation, in incties 



Precipitation 1.87 



Snow — 



Maximum precip. in 24 hrs 1.01, 10th 



Number of days with .01 or more 6 



Wind, in miles 



Total movement 2968 



Greatest daily movement 269, 14th 



Least daily movement 37, 1st, 15th 



Mean hourly velocity 3.98 



Maximum velocity 28, 13th 



Wind, direction 



Prevailing direction WNW 



North, days 4 



Northeast, days 



East, days 1 



Southeast, days 1 



South, days 5 



Southwest, days 3 



West, days 7 



Northwest, days 10 



Weatlier 



Mean relative humidity, percent 80.22 



Mean cloudiness, percent 45 



Number of clear days 14 



Number of fair days 10 



Number of cloudy days 7 



Number of hours bright sunshine 200.8 



Percent of possible hours of 



bright sunshine 58.5 



Thunder and lightning 



First Frost 



30.53 



29.42 



30.06 



1.11 



79.4 

 23.4 

 •50.5 

 56.0 



Extr 



3.29 

 9 



4074 



5.4 



29.5 



W 



69.0 

 48 

 10 

 10 

 11 



175.0 



51.3 



30.68, 1929 

 29.00, 1926 



1.47, 1926; .76, 1899 



90.5, 1908 



17, 1936 



57.4, 1947; 43.2, 1890 



8.81, 1911; .01, 1924 

 15, 1913; 1, 1S')7, 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, 1923, 1938; 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 1889 to 1938, 

 except that humidity lecords are based on observations made from 1929 to 1938. The 

 third column gives extremes observed from 1889 to 1949. 



