MONTHLY SUMMARY 



December, 1944 



Barometer, in inches 



(Readings reduced to sea level) 



Maximum 30.71, 27th 



Minimum ...._29. 1 7, 1 3th 



Mean semi-daily 30.084 



Range _- 1 .54 



Air Temperature, in degrees F. 



Highest 49, 5th, 7th, 8th 



Lowest -6, 22nd 



Mean 25.3 



"Range 55 



Highest mean daily 39, 8th 



Lowest mean daily 8.5, 22nd 



Mean maximum 34.4 



Mean minimum 16.2 



Greatest daily range 32, 20th 



Least daily range 6, 1st 



Precipitation, in inches 



Precipitation 2.18 



Snow — 9.25 



Maximum precipitation in 24 hrs. 



.. 72, 27th, 28th 



Number of days with .01 or more 8 



Wind, in miles 



Total movement 4936 



Greatest daily movement _ .409, 1st 



Least daily movement 7, 6th 



Mean hourly velocity 6.6 



Maximum velocity 48, 28th 



Wind, direction 



Prevailing direction W 



North, days :. 1 



Northeast, days __ __ ..1 



East, days 



Southeast, days 7 



South, days __ 1 



Southwest , days — —.2 



West, days 11 



Northwest, days — 8 



Weather 



Mean relative humidity, percent — .—.66.7 



Mean cloudiness, percent ....54 



Number of clear days 12 



Number of fair days 6 



Number of cloudy days . .13 



Number hours bright sunshine ...145 



Percent of possible hours of bright 

 sunsliine _ _,. 51.2 



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 19,38, except that humidity records are based on observations made 

 from 1929 to 1938. The third column gives extremes observed from 1889 to 194.3. 



