Monthly Summary 



June, igsT 



Normal 



Uaroiueter 



( Read illy s reduced to sea level) 



Maximum 30.32, 17th 



Minimum 29.48, 21st, 22nd 



Mean semi-daily Z9.909 



Range 0.84 



Air Xeiiiper:! t lire 



Highest 92, 1st 



Lowest 49, 16th 



Mean 66.9 



Monthly range 43 



rfighest mean daily 77.5, 1st 



Lowest mean daily 62.0, kl7th 



Mean maximum 77.5 



Mean minimum 56.2 



Greatest daily range 33, 25th 



Least daily range 4, 28th 



frecipHatioii 



Precipitation. In inches 5.72 



Snow, in inches 



Maximum precipitation in 24 hrs. 



1.54 21st 

 Number of days on which .01 or more 



inches of precipitation fell. . . . 16 



Wind (miles) 



Total movement 2,896 



Greatest daily movement 198, 10th 



Least daily movement 53, 29th, 30th 



Mean hourly velocity 4.0 



Maximum velocity, 5 min., 22, 7th, 22nd 

 Wind (direction) 



Prevailing direction w 



North, days 9 



Northeast, days 



East, days 2 



Southeast, days 5 



South, days 5 



Southwest, days 2 



West, days 5 



Northwest, days 2 



Weather 



Mean relative humidity, per cent. . 70.6 



Mean cloudiness, per cent 86 



Number of clear days 4 



Number of fair days ... 11 



Number of cloudy days 15 



Number of hours bright sunshine . . 169 

 Percent of possible hours of bright 



sunshine 37 



Thunder and lightning 3rd, 6th, 14th. 



19th, 29th, 30th 



30.31 



29.56 



29.961 



.75 



91.1 

 40.0 

 65.4 

 51.2 



3.54 



10 



3,584 



5.0 

 23 



Extremes 



66.5 



50.1 



9 



13 



8 

 257.4 



56.2 



30.54, 1889 

 29.24, 1902 



1.27, 1902; 0.52, 1916 



101.0, 1919 

 34.0, 1891 



9.68, 1922; 0.76, 1908 



17, 1922; 4, 1908 

 4,571,1908; 1,409, 1906 



40, 1932 



71, 1903; 28, 1908 



22, 1908; 1, 1907, 1926 



23,1912; 4, 1895, 1903 



22, 1903; 1,1923 



362, 1908; 102, 1903 



Note — The first column in the abo\e summary gives observations made riiirine the 

 month. The second column erives the averages based on observations made from 18''9 

 to 1928, except that humidit.v records are based on observations made from U>2'.t to IHao. 

 The third column «rives extremes observed from 1889 to 19H(; 



