MONTHLY SUMMARY 



NOVEMBER, 1948 



Barometer, in inches 



(Readings reduced to sea level) 



Maximum 30.45, 2nd, 3rd 



Minimum 29.45, 15th 



Mean semi-daily 30.059 



Range 1.00 



Air Temperature, in degrees F. 



Highest 72, 6th 



Lowest 20, 30th 



Mean 46.3 



Range 52 



Highest mean daily 64.5, 10th 



Lowest mean daily 30, 30th 



Mean maximum 54.6 



Mean minimum 38.1 



Greatest daily range 29, 3rd 



Least daily range 6, 23rd, 24th, 29th 



Degree-days of heating load for month 563 

 Degree-days cumulative for season 1088 



Precipitation, in inches 



Precipitation 5.22 



Snow 0.75 



Maximum precip. in 24 hrs 1.27, 4th 



Number of days with .01 or more 13 



Wind in miles 



Total movement 2976 



Greatest daily movement 263, 7th 



Least daily movement 22, 23rd 



Mean hourly velocity 4.1 



Maximum velocity 48, 13th 



Wind, direction 



Prevailing direction SW 



North, days 5 



Northeast, days 1 



East, days 1 



Southeast, days 7 



South, days 6 



Southwest, days 1 



West, days 3 



Northwest, days 6 



Weather 



Mean relative humidity, percent 71.6 



Mean cloudiness, percent 51 



Number of clear days 



Number of fair days 7 



Number of cloudy days 23 



Number of hours bright sunshine 44 



Percent of possible hours of 



bright sunshine 14.9 



Thunder and lightning 13th 



First frost — 



Normal 



30.59 



29.30 



30.05 



1.29 



66.0 

 12.9 

 38.9 

 53.0 



3.41 



2.34 



9 

 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 



75, 1924, 1938 



4, 1938 



44.1, 1931; 33.6, 1901 



8.64, 1927;.63, 1917 

 13.50, 1938 



22, 1921; 2, 1904 

 5,978, 1906; 2,589, 1889 



44, 1938 



78, 1947; 34, 1917 



15, 1903; 1,1900,1911,1927 



16, '12; 4, '89, '30, '32, '35 

 24, 1927; 9, 1905, 1917 



182, 1903; 66, 1927 



Oct. 10 '25; Dec. 13, 1941 



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

 during the month. The second column gives the averages based on observa- 

 tions 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 1947. 



