Monthly Summary 



Febuary. 19m4 



Normal 



Extremes 



Barometer 



( Readings reduced to sea level) 



Maximum 30.83, 28th 



Minimum 29.11, 13th 



Mean semi-daily 30.116 



Range 1.72 



Air Tempera<ure 



Highest 37, 22nd 



Lowest -22.0, 9th 



Mean 11.6 



Monthly range 59 



Highest mean daily 28.5, 12th 



Lowest mean daily -10, 9th 



Mean maximum 23 



Mean minimum 0.2 



Greatest daily range 42, 28th 



Least daily range. 5, 26th 



P.-ei-i[«j(:iti<»n 



Precipitation. In inches 2.82 



Snow, in inches 26 



Maximum precipitation in 24 hrs. 1.42, 



19th,"20th 

 Number of days on which .01 or more 



inches of rain fell 9 



Wimi (miles) 



Total movement 5,143 



Greatest daily movement .... 454, 20th 



Least daily movement, 39, 4th 



Mean hourly velocity 7.7 



Maximum velocity for 5 min., 48, 20th 

 (c'liriected to confirm to 3 cup anemometer) 



Wind (direction) 



Prevailing direction w 



North, days 



Northeast, days 



East, days 



Southeast, days 5 



South, days 1 



Southwest, days 5 



West, days 2 



Northwest, days 15 



Weat her 



Mean relative humidity, per cent . . 58.0 



Mean cloudiness, per cent 42.5 



Number of clear days 15 



Number of fair days 7 



Number of cloudy days 6 



Number of hours bright sunshine 191.0 

 Percent of possible hours of bright 



sunshine 64.6 



Thunder and Lightning 



Frosts 



30.63 



29.20 



30.03 



1.43 



50.3 

 -7.9 

 23.5 



58.2 



10 

 4,833 



7.1 

 29 



77.9 

 50.5 



10 

 8 



10 

 160 



54.1 



31.05, 1920 

 28.56, 1895 



1.89, 1900, 1908;.88, 1913,1931 



65.0, 1930 

 -22.5, 1918 



3.35 8.12, 1900; 0.62, 1901 

 14.27 48.75 1893; 2.5, 1912 



15, 1893, 1920; 4, 1901 

 6,445, 1896; 3,438, 1892 



45, 1933 



90, 1889, 66.8, 1902 



66, 1890, 1927; 81, 1905 



17,1924; 2, 1927 



16, 1920; 3, 1890 



16, 1894, 2, 1920 



221,1924; 110,1927 



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 18i<9 to 

 1928. The third column gives extremes observed from 1889 to 1938. 



