,- 3 „- 



BULLETIN No. 239. 



NOVEMBER, 1908. 



Meteorological Observations 



AT TIII<: 



MASSACHUSETTS 



AGRICULTURAL EXPERIMENT 



STATION. 



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



Hei<^ht of ha ro meter above ground, ^ i ft. Above sea level, 2yj.^ ft, 

 Height of Wi?id Instruments 72 ft. 



MONTHLY SUMMARY. 



freBSiire, In inches. 



Maxinmin reduced to freezing, 30 13, 22d, g A. 

 Miiiiniinn lediiced to freezing. 29.01, 4tli. 9 A- 

 Kedu'cecll nuixiniuni readinfi, 3o-45, 22d,9 a' 

 Kediicedl niiniiniini readinji, 29. 31, 4tli, 9 A. 



Mean semi-daily reduced, 30.008 



Monthly range 114 



*Air Tcin/iei'itttire.. in Degrees Falir. 



Highest 5S.o,3d, 2 p.;24th, 3P. 



Lowest i8.5.;th,6A; 19th, 7:30 A. 



Mean hourly, 3^-° 



'Mean of means of max. and niin 38.5 



Mean sensible (wet bulb), 34-3 



Monthly range 3'^-i 



Highest mean daily, 49.2,2f)th 



Lowest mean daily 28. 8, 5th 



Mean maxinium 47-2 



Mean nunimum, 29.8 



Mean daily range, i7-4 



Greatest daily range 33.0,4th 



Least daily range 4-o< "th 



Huinidity. 



Mean dew point • 3o-> 



Mean force of vapor, 223 



Mean relative humidity, 79-6 



Precipitntion. In inches. 



Total iirecipitation, 1.06 



Number of days on which .01 inch or more 



rain or melted snow fell, 8 



Total snow in inches, 3-5 



* Temperature in ground shelter. 

 t Reduced to freezing and sea-level. 



Total movement 54S5m. 



Greatest daily movement 382m., 4th. 



Least daily movement 31m. ,25th. 



Mean daily movement 183 m. 



Mean hourly velocity, 7.6 m. 



Maximum pressure per square foot, 9.5 lbs.= 



44m. per hour, 4th, iiA., S.W. 

 Maximum velocity for 5 minutes, 3''ni. per 



hour 4tli, lOA., S.W. 

 Prevailing Direction, Southwest. 

 Summary. 



.South Southeast . . 20 per cent 



West Southwest 20 " " 



West Northwest 17 " " 



South 13 " " 



Other directions .30 " " 



Weather. 

 .Mean cloudiness observed, . ■ . .46 per cent. 

 Total cloudiness recorded by the Sun 'I'lier- 



mometer, . ... i82hrs.=62 per cent. 



Number of clear days, 3 



Number of fair days, 13 



Number of cloudy days, 14 



Iiri(/ht SiDi.^hine. 

 Number of hours recorded, . . iii hrs. = 38?'» 

 linin, 5th, Sth, nth, 14th, 15th. i8th, 19th, 



2!;th. 26th, 30th. 

 Snow, 5th, 14th, 15th, 18th. 

 Galea, 35 miles or more per honr ; 36m., 



ist., W.N.W.; 44m., 4th, S.W. ; 35m.,r)th, 



W.S W.; 38m., i2th, W.; 3;m., 15th, W.S. 



W.; 35m., 27th, W. 



