MONTHLY SUMMARY 



February, 1948 



Barometer, in inches 



(Readings reduced to sea level) 



Maximum 30.98, 24th 



Minimum 29.12, 14th 



Mean semi-daily 30.221 



Range 1.86 



Air Temperature, in degrees F. 



Highest SO, 17th 



Lowest -10, 10th, Uth 



Mean 21.4 



Range 60 



Highest mean daily 43.0, 17th 



Lowest mean daily 5.5, 9th 



Mean maximum 32.2 



Mean minimum 10.6 



Greatest daily range 37, 7th 



Least daily range 6, 4th 



Degree days of heating load for month 1264 

 Degree days cumulativ^e for season 5196 



Precipitation, in incties 



Precipitation 2.45 



Snow 15.0 



Maximum precip. in 24 hrs 96, 28th 



Number of days with .01 or more 8 



Wind, in miles 



Total movement 3955 



Greatest daily movement 403, 15th 



Least daily movement 19, 6th 



Mean hourly velocity 5.7 



Maximum velocity 48, 14th 



Wind, direction 



Prevailing direction WNW 



North, days 6 



Northeast, days 1 



East, days 



Southeast, days 2 



South, days 4 



Southwest, days 1 



West, days 7 



Northwest, days 8 



Weather 



Mean relative humidity, percent 65.0 



Mean cloudiness, percent 82 



Number of clear days 10 



Number of fair days 9 



Number of cloudy days 10 



Number of hours bright sunshine 160 



Percent of possible hours of 



bright sunshine 54.1 



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 



66.6 



50.9 



10 



8 



10 



158 



53.4 



Extremes 



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 



66, '90, '27; 31, 1905 



19, 1941; 2, 1927 



16. 1920; 2. 1936 



16, 1894; 2. 1920 



221, 1924; 110, '27, 'i^ 



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 1938, except that humidity records are based on observations made from 

 1929 to 1938. The third column gives extremes observed from 1889 to 1947. 



