01519 Grafton, MA experiences a humid continental climate with four distinct seasons. The winters in Grafton are cold and snowy, with average temperatures reaching as low as 20°F. Summers in Grafton are warm and humid, with temperatures often reaching 80°F or above. Spring and fall offer mild weather usually ranging between 40-60°F. The area receives an average of 46 inches of precipitation per year, with the most rain falling between May and July.
Grafton (zip 01519), Massachusetts gets 49 inches of rain, on average, per year. The US average is 38 inches of rain per year.
Grafton (zip 01519) averages 43 inches of snow per year. The US average is 28 inches of snow per year.
On average, there are 197 sunny days per year in Grafton (zip 01519). The US average is 205 sunny days.
Grafton (zip 01519) gets some kind of precipitation, on average, 122 days per year. Precipitation is rain, snow, sleet, or hail that falls to the ground. In order for precipitation to be counted you have to get at least .01 inches on the ground to measure.
Summer High: the July high is around 82 degrees
Winter Low: the January low is 13
Rain: averages 49 inches of rain a year
Snow: averages 43 inches of snow a year
BESTPLACES COMFORT INDEX
The annual BestPlaces Comfort Index for the 01519 zip code is 6.9 (10=best), which means it is about average compared to other places in Massachusetts.
9.1 / 4.8
Summer / Winter
August, July and June are the most pleasant months in the 01519 zip code, while January and February are the least comfortable months.