14a 



METEOROLOGICAL OBSERVATIONS. 



Department of Meteorology. 



P.D. 31. 



prof. .1. e. ostrander, head. 

 Annual Summary for 1923. 



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 



30.52, Jan. 22nd, 11 a. 

 28.98, Dec. 28th, 12 m. 

 30.84, Jan. 22nd, 11 a. 

 29.29, Dec. 28th, 12 m. 

 30.020 

 1.55 



Air Temperature (in Degrees Fahr.).' 



Highest 97.0, June 19th, 3 p. 



Lowest —12.0, Jan. 31st, 6 a. 



Mean hourly . . . . . .46.6 



Mean of means of max. and min. 



Mean sensible (wet bulb) 



Annual range . 



Highest mean daily 



Lowest mean daily 



Mean maximum 



Mean minimum 



Mean daily range . 



Greatest daily range 



Least daily range . 



81 



. 46.8 



. 41.4 



. 109.0 



7, June 20th 



3.8, Feb. 18 



. 58.5 



. 35.1 



23.4 



49.0, Sept. 23d 



3.5, Nov. 7th 



Humidity. 

 Mean dew point . . . . . .36.9 



Mean force of vapor ...... 369 



Mean relative humidity . . . . .75.5 



Wind. 



Prevailing direction . . West, Northwest 



Sumviary. 



North 12 per cent 



North Northwest 11 per cent 



South ....... 12 per cent 



South Southwest 12 per cent 



Northwest 12 per cent 



Other directions 41 per cent 



Total movement 48, 864 m. 



Greatest daily movement . . 405 m.. Mar. 5th 

 Least daily movement . . 18 m., Nov. 16th 



Mean daily movement .... 134 m. 



Mean hourly velocity .... 5.6 m. 



Maximum pressure per square foot, 22.5 lbs.,= 



67 m. per hour, Apr. 29th, 1 a., S. S. W. 

 Maximum velocity for 5 minutes, 36 m. per hour, 



Mar.28th, 2p.,W. N.W.; Apr. 29th, 1 a., S. S. W. 



Precipitation (in Inches). 



Total precipitation, rain or melted snow . 39.49 



Snow total in inches 63.7 



Number of days on which .01 or more rain 



or melted snow fell 125 



Weather. 



Mean cloudiness observed . . .45 per cent 

 Total cloudiness recorded by Sun Thermom- 

 eter 1,686 hrs. =38 percent 



Number of clear days ..... 141 

 Number of fair days ..... 131 

 Number of cloudy days .... 93 



Bright Sunshine. 

 Number of hours recorded 2,773 hrs. =62 per cent 



Dates of Frosts. 



Last May 24th 



First Sept. 15th 



Dates of Snow. 



Last April 15th 



First Nov. 8th 



Total days of sleighing 86 



Gales of 50 or More Miles Per Hour. 



54 m. Feb. 3d, N. W.; 52 m. Mar. 19th. W. N. W.; 

 59 m. M.ir. 28th, W. N. W.; 52 m. Apr. 24th, N.; 

 67 m. Apr. 29th, S. S. W. 



' Temperature in ground shelter. 



REPORT OF THE TREASURER. 



FRED C. KENNEY. 



United States Appropriations, 1922-23. 

 Dr. Hatch Fund. 



To receipts from the Treasurer of the United 

 States, as per appropriations for fiscal 

 year ended June 30, 1923, under Acts of 

 Congress approved March 2, 1887 and 

 March 16, 1906 



$15,000 00 



Adams Fund. 



$15,000 00 



