METEOROLOGICAL OBSERVATORY 



Hatcli Expcriiiieiit 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. 82. 



OCTOBER, 1895. 



MONTHLY SUMMARY. 



Fresstire. In inches. 



Actual maximum reading ,'50.39,31*1 



Actual minimum reading, .... -29.30, 1311) 



Mean reduced to sea level 30.08'2 



Monthly range, 1.09 



*Air Tetuperature, Jn Degrees Falir. 



Highest 66, 22d and 28th ; 71,3d 



Lowest 27; 20, 22d 



Mean, 47.1 



Monthly Range, 39. ;51. 



Highest mean daily 58.1, 13tli 



Lowest mean daily, 36.8,31st 



Mean maximum, 54. S; 57.9 



Mean minimum, 38.8; 33.3 



Mean daily range 15.9; 24.6 



Greatest daily range, .... 28. 11th; 39. 3d 

 Least daily range 3, 13th ; 8, 13th 



Hutniditij. 



Mean dew point 35.4 



Mean force of vapor, 328 



Mean relative humidity G9.2 



Wind. 



Prevailing Directions. 



West, 



191 



' cent. 



South South West 16 



North West, 13 



North North West, 13 



Other directions, 39 



Total movement .5029 m. 



Greatest daily movement, . . .448 m., 13th 



Least daily movement 23 m.; 16th 



Mean daily movement, 162.2 m- 



Mean hourly velocity, 6.8 m. 



Maximum pressure per square foot, 141bs.= 

 53 m. per hour, 13th, 7 a.m. 



* Precipitation. In inches. 



Total precipitation 4.58,4.77 



Weather. 

 Mean cloudiness observed, ... 42 per cent. 



Number of clear days, 11 



Nuniberof fair days 12 



Number of cloudy days, 8 



Total cloudiness recorded by the Su^u Ther- 

 mometer, . . . 1^5 hours or 42.4 per cent. 

 Number of days on which .01 inch or more 

 rain fell 9 



Ttright Snnnhine. 



Number of Hours reconlerl 197 



Itain, 7th, 8th, l.'th, 13th, 14th, 15th, 17th, 



ll)th,26th, 2-th, 31st. 



Thunder and Lightning, 28th, 



Oales, of 35 or more miles per hour, . 46, Ist, 



N.W.; 42, 11th, S.S.W.; 53, 13th, N.E.; 36, 



14th, N.; 52, 17th, W.; 40, 19th, S.S.W.; 



42,22d, S.; 37, 25th,S.W.; 39,27th,S.S.W.; 



49, 28th, S.W. 

 Snow, 20th, a trace 



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



