Monthly Summary 



January, 1985 



Normal 



Extremes 



Barometer 



(Readings reduced tn sea level) 



Maximum 30.81, 5th 



Minimum 29.41, 1st 



Mean semi-daily 30.006 



Range 1.40 



Air Temperafnre 



Highest 48, 7th, 8th 



Lowest -21, 28th 



Mean 19.0 



Monthly range 69 



Highest mean daily 44, 7th 



Lowest mean daily -3.5, 27th, 28th 



Mean maximum ^7.8 



Mean minimum ' 0.3 



Greatest daily range 43, 5th 



Least daily range 3, 9th, 10th, 12th 



Precipitation 



Precipitation. In inches 4.96 



Snow, in inches 28.50 



Maximum precipitation in 24 hrs 



0.92, 1st 

 Number of days on which .01 or more 



inches of rain fell 13 



Wind (miles) 



Total movement 5357 



Greatest daily movement 460, 24th 



Least daily movement 37, 20th 



Mean hourly velocity 7.2 



Maximum velocity for 5 min., 40, 3rd, 

 14th, 18th 

 (■• (iierce i to conf.)iru to :-i cup anemometer) 

 Wind (direction) 



Prevailing direction wnw 



North, days 1 



Northeast, days 



East, days 5 



Southeast, days 8 



South, days 



Southwest, days 2 



West, days 5 



Northwest, days 10 



Weather 



Mean relative humidity, per cent. . 73.3 



Mean cloudiness, per cent 59.0 



Number of clear days 14 



Number of fair days 6 



Number of cloudy days 11 



Number of hours bright sunshine . . 147 

 Percent of possible hours of bright 



sunshine 50 



Thunder and Lightning 



Frosts 



30.71 



29.18 



30.07 



1.54 



50.4 

 -7.4 

 23.8 



58.2 



31.00, 1927 

 28.55, 1913 



2.18, 1913; 0.97, 1896 



66.0, 1932 

 -26.0, 1904 



3.42 7.15, 1898; 1.07, 1896 

 13 33,1898, 1923; 1.75,1911 



11 

 5.068 



6.8 

 30 



18, 1923; 4, 1889 

 7,770, 1908; 2,896, 1895 



41, 1911 



78.2 87.7, 1920; 63.4, 1932, 1933 



54 



8 



10 



13 



140 



47.6 



78, 1932; 37, 1908 



16, 1922; 2, 1914 



18, 1890, 1926; 3, 1916 



22,1923, 1931; 4, 1920 



214, 1920; 74.2, 1932 



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. The third column gives extremes observed from 1889 to 1934. 



