Monthly Summary 



January, 1933 



Normal 



Extremes 



Barometer 



(Readings reduced to sea level) 



Maximum 30.69, 13th 



Minimum 29.36, 28th 



Mean semi-daily 30.007 



Range 1.33 



Air Temperature 



Highest 55, 4th 



Lowest 9, 1st 



Mean 32.6 



Monthly range 46 



Highest mean daily 43.5 23rd 



Lowest mean daily 15.5, 1st 



Mean maximum 40.6 



Mean minimum 24.5 



Greatest daily range 30.0, 2nd 



Least daily range 4.0, 27th 



Precipitation 



Precipitation. In inches 2.44 



Snow, in inches 9.00 



Maximum precipitation 24 hrs. .83, 



9th 

 Number of days on which .01 or more 

 inches of rain fell 6 



Wind (miles) 



Total movement 5,961 



Greatest daily movement .... 552, 29th 



Least daily movement 39, 16th 



Mean hourly velocity 8 



Maximum velocity for 5 min.. . . 39, 20th 



(corrected to conform to 3 cup aneuiometer) 



Wind (direction) 



Prevailing direction w 



North, days 2 



Northeast, days 1 



East, days 



Southeast, days 9 



South, days 3 



Southwest, days 1 



West, days 6 



Northwest, days 9 



Weather 



Mean relative humidity, per cent . . 63.4 



Mean cloudiness, per cent 69 



Number of clear days 14 



Number of fair days 7 



Number of cloudy days 10 



Number of hours bright sunshine 151.3 

 Percent of possible hours of bright 



sunshine 51 



30.71 



29.18 



30.07 



1.54 



50.4 

 -7.4 

 23.8 

 58.2 



3.42 

 13 



11 



5,068 



6.8 

 30 



78.2 

 54 

 8 



10 



13 



140 



47.6 



31.00, 1927 

 28.55, 1913 



2.18, 1913; 0.97, 1896 



66.,0 1932 

 -26.0, 1904 



7.15, 1898; 1.07, 1896 

 33,1898, 1923; 1.75, 1911 



18, 1923; 4, 1889 



7,770, 1908; 2,896, 1895 



40, 1913 



85.3, 1927; 68.2, 1890 



66, 1898; 38, 1922 



16, 1922; 2, 1914 



18, 1890, 1926; 3, 1916 



22, 1923, 1931; 4, 1920 



214, 1920; 76, 1923 



NoTK-The first column in the almve summary gives observations made durintr tlie 

 month. The second column tfives the averages baaed on observations made from 1»8!) to 

 I'.d'iS. The ttiird colnrnii trives extremes oI)served from l.ss'.t to l'.i32. 



