1900.] 



PUBLIC DOCUMENT — No. 33. 



95 



Greatest in twenty-four hours, July 12-13, 1897, . . . 6.650 



Greatest in one hour, July 30, 1898, 1.500 



Unusual rains : 1889, June 15, 2.10 inches in four hours ; 1896, 

 July 7, 1.10 inches in thirty minutes; 1897, June 9, 4.08 

 inches in twenty hours ; July 13-14, 8 inches in forty-four 

 hours ; 1898, July 30, 2.65 inches in two hours ; September 

 10, .95 inch in twenty minutes. Number of days on which 

 .01 inch or more rain or melted snow fell, . . . .1,241.000 



Wind (m Miles). 

 Total movement, .... 

 Greatest annual movement, 1896, 

 Least annual movement, 1894, . 

 Mean annual movement, . ... 

 Greatest monthly movement, March, 1896, 

 Least monthly movement, July, 1894, 

 Mean monthly movement, . 

 Greatest daily movement, Nov. 27, 1898, 

 Least daily movement, Sept. 29, 1894, and March 7, 1895 



Mean daily movement, 



Maximum pressure per square foot, 43 pounds, =z 93 i 

 per hour, Sept. 11, 1895, 3 p.m. 



515,638 



59,198 



36,257 



51,566 



8,182 



1,109 



4,297 



675 



141 



iches 



Weather. 



Mean cloudiness observed, 52.40 per cent. 



Total cloudiness by the sun thermometer, . 22,400 z= 50.30 per cent. 

 Number hours bright sunshine recorded, . 22,120 =z 49.70 per cent. 



Number of clear days, 1,143 



Number of fair days, 1,065 



Number of cloudy days, 1,444 



Gales of 75 or more miles per hour : 1889, Dec. 26, 76, N.W. ; 1893, 

 Aug. 29, 87, S.W. ; 1895, Sept. 11, 93, N.E. ; 1898, Sept. 7, 78, S.W. ; Dec. 

 4, 75, E.S.E. 



