Annual Summary for 1897. 



Pressure. In inches. 



Maximum reduced to freezing, 30.54 Mar. 1st, 7 A. 



Minimum reduced to freezing, 28.82 Nov. 9th, 7 P. 



Maximum reduced to freezing and sea-level, . • 30.88 Mar. 1st, 7 a. 



Minimum reduced to freezing and sea-level, 29.12 Nov. 9th, 7 P. 



Mean reduced to freezing and sea-level, 30.014 



Annual range 1-76 



*jlir Temperature. In degrees Fahr. 



Highest • . 91.5 Sept. 10th 



Lowest, -11. Feb. 1st 



Mean 46.6 



Mean of means of max. and min 46.8 



Mean sensible (wet bulb), 43.7 



Annual range, 102.5 



Highest mean daily 78.1 July 9th 



Lowest mean daily, • 5.0 Jan. 19th 



Mean maximum, 57.1 



Mean minimum, ... • 36.5 



Mean daily range, 20.6 



Greatest daily range 47.0 Oct. 4th 



Least daily range, 3.5 Nov. 19th 



Humidity . 



Mean dew point, 39.6 



Mean force of vapor 402 



Mean relative humidity, 76.4 



Wind. 



Prevailing Direction, West, or S. 79° W. 

 Summai'y. 



South, . . . • 19 per cent. 



North West 12 " 



West, 11 " 



North, 10 " 



South South West, 8 " 



West North West 8 " 



North North West 7 " 



South West, 7 " 



Other Directions 18 " 



Total movement ,54,220 m. 



Greatest daily movement, 400m. Jan.26,Feb.3 



Least daily movement lUu. Feb. 1 



Mean daily movement, 146.8 m. 



Mean hourly velocity, 6.1 



Maximum pressure per square foot 22 lbs.= 

 66m. per hour on May 10th, 2 p. W.S.W. 



Precipitation. In inches. 

 Total precipitation, rain or melted snow 57.05 

 Number of days on which .01 or more 



rain or melted snow fell 127 



Snow total in inches, 52.8 



Weather. 



Mean cloudiness observed 51.454 



Total cloudiness recorded by Sun Ther- 

 mometer, 2209 hours=50.5^ 



Number of clear days, • .108 



Number of fair days 109 



Number of cloudy days, 148 



Bright Sunshine, 



Number of hours recorded, 2325 hours=50.1:i 



Dates of JFrosts. 



Last May Sth 



First Sept. 22d 



Dates of Snow. 



Last, April 27th 



First, Nov. 12th 



Total days of sleighing, . - . 38 



Gales of 50 or More Miles Per Hour, 

 Jan. 18th, 61m. W.; 23d, 55m. W.N.W.; 25th, 



52m. W.N.W.; 26th, 55m. N.N.W. 

 Jlfarc/t 4th, 51m. N.W.; 13th, 51m. W.N.W.; 



loth, 52m. W.N.W. 

 April 19th, 53m. N.W. 

 May 10th, 66m. W.S.W. 

 Aug. 15th, 53m. S.S.W. 

 Sept. 26th, 64m. N.W. 

 JVov. 9th, 63m. W. 



* Temperature in ground shelter. 



J. E. OSTRANDER, Meteorologist. 



A. C. MONAHAN, Observer. 



