Bolton, MA has a humid continental climate which means that it experiences four distinct seasons throughout the year. Summers are typically warm and humid, while winters can be cold and snowy. The average annual temperature is around 39°F (4°C). Rainfall is fairly common throughout the year, and snowfall averages around 30 inches per year. Bolton often experiences extreme temperatures during both summer and winter months. Humidity levels are quite high in the summertime, making for hot and sticky days.
Bolton (zip 01740), Massachusetts gets 49 inches of rain, on average, per year. The US average is 38 inches of rain per year.
Bolton (zip 01740) averages 48 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 Bolton (zip 01740). The US average is 205 sunny days.
Bolton (zip 01740) gets some kind of precipitation, on average, 125 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.
Weather Highlights
Summer High: the July high is around 83 degrees
Winter Low: the January low is 15
Rain: averages 49 inches of rain a year
Snow: averages 48 inches of snow a year