METEOROLOGICAL OBSERVATORY 



llalcli Experiiiient Station 



MASSACHUSETTS AGRICULTURAL COLLEGE, 



^ft^nVtliEPlST. 



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



figig/it of /hi ro meter above ground, 31 ft. Above sea level, 2JJ.3 ft. 

 Height of lVI/i(i histruiuents 72 ft. 



BULLETIN No. 178. 



OCTOBER, 1903. 



MONTHLY SUMMARY. 



I'rrHSii re. In inches. 

 Maximum reduced to freezing, 30.11, 3d, 11 A, 

 Mininuini reduced to freezing, 29.03, iSth, i a. 

 Reducedt luaximuni reading, 30.40, 3d, 11 A. 

 Reduced* niininuun reading, 29.32, iSth, i A- 



Mean tri-daily reduced, 30.000 



Monthly range • 1.08 



*.4ir Teinpertitiire. In Degrees Fahr. 



Highest, 77.5. ist,2P 



Lowest 22.5, 2gth, 6:30 a 



Mean hourly, 51. 



Mean of means of max. and mm., . . . .51.4 



Mean sensible (wet bulb), 47 



Monthly range, . . . : 5S.0 



Highest mean daily 64.5, 2d 



Lowestmean daily 33.1,27th 



Mean maximum, 61.7 



Mean minimum, 41. i 



Mean daily range 20.6 



Greatest daily range, 41.0, 2qth 



[-east daily range, 3.5,11th 



Hum id it;/. 



Mean dew point 39.2 



Mean force of vapor, 410 



Mean relative humidity, 74,5 



Precipitation. In inches. 



Total precipitation, 2.72 



Number of days on which .01 inch or more 

 rain or melted snow fell 14 



Snotv, total in inches trace 



• Temperature in ground shelter. 

 t Reduced to freezing and sea-level. 



Wind. 



Total movement, 4703 m. 



Greatest daily movement, .... 348m., 9th. 



Least daily movement, 25m., 6th. 



Mean daily movement, 152111. 



Mean hourly velocity 6,3m. 



Maximum pressure per square foot, S.o lbs.= 



40 m. per hour, 26th, 2 p., W.S.W. 

 Prevailing Direction, West. Southwest. 



.'nummary. 



South 19 per cent. 



West 16 " " 



North, Northwest, j6 " •' 



South Southeast, 10 " " 



Otlier directions, 39 " " 



Weather. 



Mean cloudiness observed, .... 58 per cent. 



Total cloudiness recorded by the Sun 'i her- 



mometer, .... 187 hrs.= 5; per cent. 



Number of clear days, u 



Number of fair days, 5 



Number of cloudy days, 15 



Jiright Sunshine. 



Number of hours recorded, . . . 154 hrs. = 4551 

 Kain, 1st, 2d. 4th. 5th, 7th, 8th,9th, loth, nth, 



I2th. 16th, i7tli, iSth- 19th, 23d. 

 Snoif, 26th, 2Sth. 

 Grtf*"*, 35 miles or more per hour, 40111. 26th, 



W.S.W. 

 Killiny Frost, 22d, 

 Heavy Frosts, 15th, 22d, 25tli. 29th. 



