MONTHLY SUMMARY 



February, 1949 



Barometer, in inches 

 (Readings reduced to sea level) 



Maximum 30.59, 12th 



Minimum 29.66. 15th 



Mean semi-daily 30.116 



Range 0.9? 



Air Temperature, in degrees F. 



Highest 54, 19th 



Lowest -1, 6th 



Mean 30.4 



Range 55 



Highest mean daily 43.5, 19th 



Lowest mean daily 14.5, 6th 



Mean maximum 39.3 



Mean minimum 21.6 



Greatest daily range 32, 12th 



Least daily range 3, 25th 



Degree-days of heating load for month 95? 

 Degree-days cumulative for season 4086 



Precipitation, in inches 



Precipitation 2.47 



Snow 13.25 



Maximum precip. in 24 hrs 52, 15th 



Number of days with .01 or more 8 



Wind in miles 



Total movement 3402 



Greatest daily movement 280, 26th 



Least daily movement 41, 15th 



Mean hourly velocity 5.5 



Maximum velocity 48, 17th 



Wind, direction 



Prevailing direction NW 



North, days 9 



Northeast, days 



East, days 



Southeast, days 4 



South, days 3 



Southwest, days 



West, days 4 



Northwest, days 7 



Weather 



Mean relative humidity, percent 69 



Mean cloudiness, percent 44.6 



Number of clear days 13 



Number of fair days 6 



Number of cloudy days 9 



Number of hours bright sunshine ....168.5 

 Percent of possible hours of 



bright sunshine 57. If'^^^ 



Thunder and lightning 



Normal 



Extremes 



30.63 



29.24 



30.04 



1.38 



50.5 



-7.4 

 23.7 

 58 



32.8 

 14.5 



3.19 

 13.99 



10 



4776 



7.1 

 31.7 



WNW 



31.05, 1920 

 28.56, 1895 



1.89, '00, '08; .88, '13, '31 



65.0, 1930 



-23, 1943 



32.6, 1890; 11.6, 1934 



8.12, 1900; 0.62, 1901 

 48.75, 1893; 0.50, 1937 



15, '93, '20; 4, 1901 



6445, 1896; 3438, 1892 



50, 1946 



53.4 



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. 



