Dartmouth, Massachusetts gets 50 inches of rain, on average, per year. The US average is 38 inches of rain per year.
Dartmouth averages 35 inches of snow per year. The US average is 28 inches of snow per year.
On average, there are 201 sunny days per year in Dartmouth. The US average is 205 sunny days.
Dartmouth gets some kind of precipitation, on average, 128 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 21
Rain: averages 50 inches of rain a year
Snow: averages 35 inches of snow a year
BESTPLACES COMFORT INDEX
The annual BestPlaces Comfort Index for Dartmouth is 7.0 (10=best), which means it is more comfortable than most places in Massachusetts.
9 / 5.1
Summer / Winter
June, September and August are the most pleasant months in Dartmouth, while January and February are the least comfortable months.