BULLETIN No. 335. 



NOVEMBER, 1916 



Meteorological Observations 



AT THE 



MASSACHUSETTS 



AGlilCULTURAL EXPERIMENT 



STATION. 



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



Height of barometer above ground, 51 ft' Above sea level, 2"/ 3.3 ft. 

 Height oj Wind Instruments J 2 ft. 



MONTHLY SUMMARY. 



Pressuie. In inches. 

 Maximum reduced to freezing, 30.23, 7th, 8 A 

 Minimum reduced to freezing, 28.72, 23d, 12 p 

 Reducedt maximum reading, 30.55, 7th, 8 A 

 Reducedt minimum reading, 29.02, 23d, 12 p 



Mean semi-daily reduced 30.101 



Monthly range 1.53 



*Air Temperatore. In Degrees Fahr. 



Highest 64.0, 9th, 4 P 



Lowest 12.5, 22d, 7 A 



Mean hourly 37-4 



Mean of means of max. and min 38.1 



Mean sensible (wet bulb) 33.9 



Monthly range 5i 5 



Highest mean daily 52.8, gth 



Lowest mean daily , . . . 22.9, 27th 



Mean maximum 48. o 



Mean minimum 28. i 



Mean daily range i9-9 



Greatest daily range 34.5> 22d 



Least daily range 7.5, 12th 



Hnmidlty. 



Mean dew point 30.5 



Mean force of vapor 272 



Mean relative humidity 82.3 



Precipitation. In inches. 



Total precipitation, in inches 3.29 



Total snow, in inches ij 



Number of days on which .01 inch or more 



rain fell 10 



* Temperature in ground:shelter. 

 t Reduced to freezing and sea-level. 



Wind. 



Total movement 3929 m 



Greatest daily movement .382m, 24th 



Least daily movement im, 17th 



Mean daily movement 131 m 



Mean hourly velocity 5.5 ni 



Maximum pressure per square foot, 22.5 lbs = 



67m per hour, 23d, 8 p, S.S.W. 

 Maximum velocity for 5 minutes, 40m per 



hour, 23d, 9P, S.S.W. 

 Prevailing direction. West. 



Summary. 



West Southwest 10 per cent 



West 23 " 



West Northwest 17 " 



South 13 " 



North 10 " 



Other directions 27 " 



Weather. 



Mean cloudiness observed .... 51 per cent 

 Total cloudiness recorded by the Sun 



Thermometer . .152 hours = 52 per cent 



Number of clear days 5 



Number of fair days 13 



Number of cloudy days 12 



Bright Sunshine. 



Number hours recorded, 141 hrs, = 48 per cent 

 Rain. 4th, 5th, 9th, 13th, 14th, 23d, 29th, 



30th. 

 Snow, 15th, i6th, 17th. 

 Gales, 35 or more miles per hour. 38m, gtli, 



S.S W.; 36m, nth, W.N.W.; 36m, 16th, 



N.W.; 67m,23d,S.S.W.; 39m,24th, W.; 41m, 



2;th, W. 



