MONTHLY SUMMARY 



NOVEMBER 1950 



Barometer, in inches 



(Readings reduced to sea level) 



Maximum 30.447, 14th 



Minimum 29.352, 25th 



Mean semi-daily 29.978 



Range 1.095 



Air Temperalure, in Degrees F. 



Highest 82, 2nd 



Lowest 19, 23rd 



Mean 42.8 



Range 63 



Highest mean daily 63, 2nd 



Lowest mean daily 26, 23rd 



Mean maximum 51.5 



Mean minimum 34.2 



Greatest daily range 38, 2nd 



Least daily range 5, 3rd-4th 



Degree-days of heating load for month. . 667 

 Degree-days cumulative for season. . . 1219.5 



Precipitation, in incties 



Precipitation 6.60 



Snow 0.5 



Maximum precip. in 24 hrs 2.28, 25th 



Number of days with .01 or more 11 



Wind, in miles 



Total movement 462 3 



Greatest daily movement 550, 25th 



Least daily movement 13, 1st 



Mean hourly velocity 6.3 



Maximum velocity 48, 25th 



Wind, direction 



Prevailing direction W 



North, days 3 



Northeast, days 1 



East, days 1 



Southeast, days 



South, days 10 



Southwest, days 3 



West, days 2 



Northwest, days 10 



Weather 



Mean relative humidity, percent 82.5 



Mean cloudiness, percent 56 



Number of clear days 11 



Number of fair days 8 



Number of cloudy days 11 



Number of hours bright sunshine.. 138.4 hrs 

 Percent of possible hours of 



bright sunshine 47.2 



Thunder and lightning 



First Frost 



Normal 



30.59 



29.30 



30.05 



1.29 



783 



3.41 



2.34 



4531 



6.3 

 30.3 



WNW 



70.6 



55.1 



6 



9 



15 



121 



41.3 



Nov. 6 



Extremes 



30.87, 1932 

 28.73, 1904 



1.84. 1904; 89. 1943 



8.64, 1927; 0.63,' 1917 

 13.50, 1938 



22, 1921; 2, 1904 



5,978, 1906; 2,589, 1889 



48, 1948, 1950 



78, 1947; 34, l')17 



15, 1903; 0, 194S 



16. 1912; 4, 1.^89. 1^30, '32 '^^^ 



24, l'^27; 9, 1905. 1917, 1949 



182. r^03; 44, l'>48 



Oct. 10, l';25: Doc. 13, I'MI 



Note — The first column in the above summary gives observations made during the mcnth. 

 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. 



