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. 87. 



MARCH, 1896. 



MONTHLY SUMiVlARY. 



Pressure. In inches. 

 Actual niaxiniuni reading, . 30. 2S, it a., 24th 

 Actual niinimuin reading, . . 28.77, f> A., 12th 



Mean reduced to sea level, 29.962 



Monthly range 1.51 



*Air Temperature. In Degrees Fahr. 



Highest, 55, 57,31st 



Lowest, 6, 5, 14tb 



Mean, 29.4 ; 29.2 



Monthly Range, 49.; 52. 



Highest mean daily, 47,31st 



Lowest mean daily 17.8, loth 



Mean ma.ximum, 38.8; 37.8 



Mean minimum, 21.1; 20.6 



Mean daily range 17.7; 17.2 



Greatest daily range, 35.,40., ISth 



Least daily range 5., 7th; 6., 12th 



Humidity. 



Mean dew point 25^6 



Mean force of vapor, 175 



Mean relative humidity, 85.3 



Wind. 

 Prevailing Directions. 



North, 13 per cent 



.Vorth West 10 " " 



West 13 " " 



West North VV^est 26 " " 



Other directions 32 " " 



Total movement, 8182 m. 



Greatest daily movement, . . . 620 m., 4th 

 Least daily movement, 78 m.; 18th 



Mean daily movement, 264. ni. 



Mean hourly velocity 11. m. 



Maximum pressure per square foot, 19. lbs. 

 =62 m. per hour, 4th, 8-30 A. M. 

 *freclpitation. In inches. 



Total precipitation 6.11 



Number of days on which .01 inch or more 

 rain or melted snow fell, 12 



Snow total in inches 17 



^%''eather. 



Mean cloudiness observed, ... .54 per cent. 



Total cloudiness recorded by the Sun Ther- 

 mometer, . . . 162 hours or 44 percent. 



Number of clear days 13 



Numberof fair days 8 



Number of cloudy days, 10 



Bright Sunshine. 



Number of Hours recorded 210 or56^ 



Rain,\st, 2nd, 7th, 19ih, 20th, 2l8t, 23d, 26th, 

 29th, 30th. 



Oales, of 35 or more miles per hour, 38, 1st, 

 E.S.E.; 41,2d,N.W.; 61, 3d, N.N.W.; 62, 

 4th, N.N.W.; 58,.ith, N.; 36,6th, N.;56, 8th, 

 W.N. W. ; 56,9th.N. W. ; 4.'i, 1 1th, N.N. E. ; 59, 

 12th, W.; 48, 1.3th, W.S.W. ; 5.5, 20th,W.N. 

 W. ; 45,22d,S.W. ; 40,-i4th,N. ;40,2r.th,S.W.; 

 :W,26lh, N.W.; 52, 27th, W.N.W. ; 36,31st, 

 W.N.W. 



Snow, 11th, 12th, IGth, 16tli, 19th. 



Solar Halo, 10th. 



Lunar Halo, 25th. 



Sleet -Slst. 



♦The first figures denote readings at top of lower, the second at base. 



