MONTHLY SUMMARY 



November. 1986 



Normal 



Extremes 



Barometer 



(Readinsis reduced to sea level) 



Maximum 30.67, 6th 



Minimum 29.34, 15th 



Mean semi-daily 30.030 



Range 1.33 



Air Temperature 



Highest 71, 3rd 



Lowest 5, 25th, 28th 



Mean 35.7 



Monthly range 66 



Highest mean daily 64, 3rd 



Lowest mean daily 17, 28th 



Mean maximum 45.3 



Mean minimum 26.0 



Greatest daily range 35, 18th 



Least daily range 9, 20th 



Precipitation 



Precipitation. In inches 2.02 



Snow, in inches 2.75 



Maximum precipitation in 24 hrs. 



0.62, 5 th 

 Number of days on which .01 or more 



inches of precipitation 10 



Wind (miles) 



Total movement 4824 



Greatest daily movement 383, 16th 



Least daily movement 24, 25th 



Mean hourly velocity 6.7 



Maximum velocity for 5 min., 32, 16th 



Wind (direction) 



Prevailing direction wnw 



North, days 2 



Northeast, days 



East, days 



Southeast, days 6 



South, days 3 



Southwest, days 



West, days 4 



Northwest, days 15 



Weather 



Mean relative humidity, per cent . . 68 



Mean cloudiness, per cent 48.3 



Number of clear days 14 



Number of fair days 6 



Number of cloudy days 10 



Number of hours bright sunshine . 161 

 Percent of possible hours of bright 



sunshine 55 



First snow Nov. 24th 



30.58 



29.34 



30.046 



1.29 



65.3 

 13.8 

 38.6 

 51.4 



3.45 

 2.05 



9 



4,564 



6.3 

 29 



70.4 



53.5 



6 



9 



15 



121.0 



41.3 



Nov. 5 



30.87, 1932 

 28.73, 1904 



1.84, 1904; 0.94, 1935 



75.0, 1924 

 3.5, 1891 



8.64, 1927; 0.63, 1917 

 9,24:t,89,93,03,12,18, 19 

 22, 27, 32, 34 



22, 1921; 2, 1904 

 5,978, 1906; 2,589, 1889 



40, 1915 



72, 1900, '27; 34, 1917 



15, 03; 1, '00 '11 '27 



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



24, '27; 9, '90, 05, '17 



182, 1903; 66, 1927 



Oct. 10, '25; Nov. 27, '31 



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 1928, except that humidity records are based on observations made from 1929 to 1985. 

 The third column gives extremes observed from 1889 to 19S5. 



