METEOROLOGICAL OBSERVATORY 



Hatch Experiment Station, 



MASSACHUSETTS AGRiCULTURAL COLLEGE, 



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



Height of instruments above ground^ 51 ft. Above sea level, 260 ft. 



BULLETIN No. 86. 



FEBRUARY, 1896. 



MONTHLY SUMMARY. 



Prensnre. In inches. 

 Actual maxinuun reading, . 30.':!4, \i M., 17th 

 Actual miuimum reading, . -28.50, 11-30 p., (!th 



Mean reduced to sea level 'iD.S!)! 



.Monthly range 1.74 



*Air Tetnperatufe, In Degrees Fahr. 



Highest, 53, 53, 29th 



Lowest -!1, -14, 17th 



Mean, '20. G 



Monthly Range, 62. ; 67. 



Highest mean daily, 4S.2, 2<Jth 



Lowest mean dailj', -1.7, 17th 



Mean maximum, 32.5; 34.3 



Mean minimum 20.1; 15.7 



Mean daily range 12.5; 18.7 



Greatest daily range, 34.,. 39., 16th 



Least daily range, 3.,21st; 7..9th 



Humidity . 



Mean dew point, 22.0 



Mean force of vapor, 157 



Mean relative humidity, • 87.5 



M'ind. 

 Prevailing Directions. 



North, 14 per cent. 



North North West, 10 " " 



North West, It " " 



West 10 " " 



West North West, 14 " " 



West .South West, 10 " " 



South West 10 " " 



Other directions, 18 " " 



Total movement, 6445 m. 



Greatest daily movement, . . . 427 m., 7th 



liCast daily movement 14 m.; 1st 



Mean daily movement, 222.2 m. 



Mean Imurly velocity, 9.3 m. 



Ma.ximum pressure per square foot, 24.5 lbs. 

 =70 m. per hour, 19th, 10 p. M. 



* Precipitation. In inches. 



Total precipitation, 4.67 



Number of days on which .01 inch or more 



rain or melted snow fell, 11 



Snow total in inches, 15.5 



Weather. 

 Mean cloudiness observed, ... 63 per cent. 

 Total cloudiness recorded by the Sun Ther- 

 mometer, ... 139 hours or 46 per cent. 



Number of clear days 8 



Numberof fair days, 12 



Number of cloudy days 9 



Bright Sunshine. 

 Number of Hours recorded, . . . .168ov545S 



Rain, 6ih, 7th, 1.3th, 23d, 29th. 



Gales, of 35 or more miles per hour, 50, 2d, 

 W.N.W. ; 36, 3d, W.N.W. ; 61, 6th, N.E. ; 

 58,7th, W.N.W.; 47, 8th, W.; 41,10th, W.; 

 68,11th, W.N.W. ; 48, I2th. W.N.W. ;r.4, 14th, 

 W.; 41.16th, N.W,; 35,17th, W.N.W. ; 70, 

 19th, W.S.W.; 41,20th, W.S.W.; 38,21st, 

 N.W.;41,22d,W.;.53,24lh,W.;57,29lh,E.S E. 

 Snow, 1st, 3d, 4th, 5th, 9th, lOlh, 14th, 18th, 

 19th, 22d. 



♦The first flgui-es denote readings at top of tower, the second at base. 



