BULLETIN No. 302. 



FEBRUARY, 1914 



Meteorological Observations 



AT THE 



MASSACHUSETTS 



AGRICULTURAL EXPERIMENT 



STATION. 



Latitude, 42° 23' 48.5" N. Longitude 72* 31' 10" W. 



Height of barometer above ground, 51 ft. Above sea level, 2"/ 3.5 ft. 

 Height of Wi?id Instruments 72 ft. 



MONTHLY SUMMARY. 



Pressure, In inches. 



Maxumun reduced to freezing, 30.34,13th, 8 a. 

 Minimiun reduced to freezing, 2S. 86, 14th, 3 P. 

 Reduced! maximum reading, 30.6S, 13th, 8 A. 

 Reduced! minimum reading, 29.18, 14th, 3 p. 



Mean semi-daily reduced 30-i32 



Montlily range i.5o 



*Air Teiiiperature. In Degrees Fahr. 



Higliest 46.5, 27th, 4 p. 



Lowest, -i7-5i '6th, 4A. 



Mean iiourly, 17.7 



Mean of means of max. and min 17.9 



Mean sensible (wet bulb), 14 i 



Monthly range, 64.0 



Highest mean daily 36.6, 4th 



Lowest mean daily, -6.7, 12th 



Mean maximum, 28.2 



Mean minimum, 7-7 



Mean daily range 20.5 



Greatest daily range, 45-o. 25th 



Least daily range 6.0, 19th 



Hiiuiidity. 



Mean dew point 7.9 



Mean force of vapor 106 



Mean relative humidity, 720 



Precipitation. In inches. 



Total precipitation 3.36 



Number of days on which .01 inch or more 



rain fell • 8 



Total snow in inches ^ 24.5 



* Temperature in ground shelter. 

 1 Keduced to freezing and sea-level. 



Wind, 



Total movement, 5855m. 



Greatest daily movement, .... 462m., 8th 



Least daily movement 43m.,i8th 



Mean daily movement 209 m 



Mean hourly velocity, 8.7 m 



Ma.ximum pressure per square foot, 12.5 lbs.= 



50m. per hour, 14th, 3P., N.N.W. 

 Maximum velocity for 5 minutes, 39111. per 



hour, 14th, 3P., N.N.W. 

 Prevailing Direction, Northwest. 



Summary. 



North 25 per cent 



West Northwest iS " " 



North Northwest 14 " " 



North Northeast 11 " " 



South Southwest n " " 



West II " " 



Other directions 10 " " 



Weather, 



Mean cloudiness observed, .... 42 per cent. 

 Total cloudiness recorded by the Sun Ther- 

 mometer, ii8hrs. = 40 per cent. 



Number of clear days, 12 



Number of fair days, 8 



Number of cloudy days, 8 



Bright Sunshine. 



Number of hours recorded, . . 178 hrs = 6o9f. 



Rain, 3d, 4th, 7th. 



Snow, 3d, 6th, 7th, i3tli, 14th, 16th, 17th, 19th, 



22d. 



Days of Sleighing, 15. 



Gales, 35 or more miles per hour : 44m, 7th, 

 W.; 41m, 8th, W.; 5oin, 14th, N.N.W.; 35m, 

 24th, N. 



