Annual Summary for 1928. 



Pressure. In inches. 



Maximum reduced to freezing, 



Minimum reduced to freezing, 



Maximum reduced to freezing and sea-level, . . . 

 Minimum reduced to freezing and sea-level, . . . 

 Mean semi-daily reduced to freezing and sea-level. 

 Annual range, 



. 30.40, Feb. 6th, 9 A. 



28.60, Jan. 25th, 6 A. 



30.73, Feb. bth, 9 A. 



28.90, Jan. 25th, 6 A. 



29.997 



1.83 



*Air Temperature, In degrees Fahr. 



Highest, 93.0, July 8th, 4-30 P. 



Lowest, -3.5, Jan. 30th, 7 A. 



Feb. 26th, 7 A. 



Mean hourly, 47-4 



Mean of means of max. and min 47.8 



Mean sensible (wet bulb), 43-i 



Annual range, 96-5 



Highest mean daily, 78.1, Aug. 29th 



Lowest mean daily, 9-6, Feb. 26th. 



Mean maximum, 57-5 



Mean minimum, 38.4 



Mean daily range, i9-i 



Greatest daily range, 47.0, May 10th. 



Least daily range, . . 4.0 Feb. 9th. June 5th., 



June 20th. 



Humidity. 



Mean dew point, 40.2 



Mean force of vapor, 378 



Mean relative humidity, 79-9 



Wind. 



Prevailing direction, Southwest 



Summary. 



West 14 per cent 



South 10 " " 



South Southwest 9 " " 



West Northwest 9 " " 



Northwest 13 " " 



Other directions, 45 " " 



Total movement 57.215 ni 



Greatest daily movement, . . . 544m., Jan. 25th 



Least daily movement 21m., Feb. 1st. 



Mean daily movement, 156.4 m 



Mean hourly velocity, 6.5 m 



Maximum pressure per square foot, 25.0 lbs.,~ 



71 m. per hour, Jan. 25th. 5 p. W. 

 Maximum velocity for 5 minutes, 48 m. per 

 hour, Nov. bth, 4.30 p. 



Temperature in ground shelter. 



Precipitation. In inches. 

 Total precipitation, rain or melted snow, . 42.06 



Snow total in inches, jo.o 



Number of days on which .01 or more rain 

 or melted snow fell, 122 



Weather. 



Mean cloudiness observed 51 per cent. 



Total cloudiness recorded by Sun Thermom- 

 eter, 2253 hrs. =51 per cent. 



Number of clear days, . 93 



Number of fair days, 116 



Number of cloudy days 157 



Bright Sunshine- 

 Number of hours recorded,220i hrs.^49 per cent 



I>ate8 of Frosts. 



Last, May 14th 



First Sept. 25th 



l><«tes of Snow. 



Last April 2Sth 



First Nov. 8th 



Gales of 50 or More .Miles Per Hour, 



51 m. Jan. 5th, N.W.; 50 m. Jan. T4th, W.; 71 m 



Jan. i5th, W. 

 51 m. Mar. 3d, W. 

 59 m. April 9th, W. 

 55 m. Nov. 6th, S. E 

 57 m. Dec. 30th, N. N. W. 



L. 0. JONES 



Obsemer. 



C. I. GUNNESS, 



Meteorologist. 



