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. 94. 



OCTOBER, 1896. 



MONTHLY SUMMARY. 



Pressure, In inches. 

 Actual maximum reading, . . 30.40, 10th, 9 a. 



Actual min. reading ^g.S^, 24th, 1 P. 



Reduced maximum reading, 30.68, 10th, 9 a. 

 Reduced min. reading, .... 29.60, 24th, 1 p. 



Mean reduced to sea level 30.094 



Monthly range 1.08 



*Air Temperature. In Degrees Fahr. 



Highest 72.0; Slst 



Lowest 23., 26th 



Mean, 46.4 



Mean of means of max. and min. 47. j 



Mean sensible(wet bulb), 44.9 



Monthly Range, 49.0 



Highest mean daily, 60.8, Slst 



Lowest mean daily, 36.4, 23d 



Mean maximum, 55.9 



Mean minimum, 38.1 



Mean daily range 17.8 



Greatest daily range, 37.5,27th 



Least daily range, 3., 5th 



Iluniidity. 



Mean dew point, 42.4 



Mean force of vapor, 339 



Mean relative humidity 85.1 



Wind. 



Prevailing Direction, west. 



Summary. 



North 13percent. 



West 13 " " 



South 10 " " 



South West 19 " " 



South South West 10 " " 



Other directions, 35 " *' 



Total movement, 454-1 m. 



Greatest daily movement, . . . 455 m., 12th 



Least daily movement, 20 m., 23d 



Mean daily movement, 146.6 m. 



Mean hourly velocity 6.1 m. 



Maximum pressure per square foot, 12 lbs.= 

 49m. per hour, r2th 11 A. N.E. 



Precipitation. In inches. 



Total precipitation 3.23 



Number of days on which .01 inch or more 

 rain fell, 13 



WeatJier. 



Mean cloudiness observed, ... 63 per cent. 

 Total cloudiness recorded by the Sun Ther- 

 mometer, . . .226 hours or 66 per cent. 



Number of clear days, 7 



Number of fair days, 5 



Number of cloudy days, 19 



Bright Sunshine. 



Number of Hours recorded, 115 hours or 34 5( 

 Rain, 1st, 2d, 4th,5th, 6th, 7th, 12th, 13th, 14th, 



15th, 17th, 18th,21st,2.3d,24th,29th,30th,3l8t. 

 Oales, of 35 or more miles per hour, 39m., 



11th, N.E.; 49m., 12th, N.E.; 36m., 19tli, 



W.N.W.; 39m., 20th, S.S.W.; .37m. 2l8t, 



S.S.W. 



* Temperature in ground shelter. 



