Holliston, MA has a humid continental climate that features hot and humid summers and cold, snowy winters. During the summer months, temperatures reach into the 80s Fahrenheit with humidity levels around 65%, while winter temperatures average in the mid-20s Fahrenheit with occasional snowfall. The area receives an average of 44 inches of precipitation annually which is spread out across all four seasons. In spring and autumn, temperatures are mild with occasional rain showers. The area also experiences thunderstorms with strong winds during these times of year as well.
Holliston, Massachusetts gets 50 inches of rain, on average, per year. The US average is 38 inches of rain per year.
Holliston averages 44 inches of snow per year. The US average is 28 inches of snow per year.
On average, there are 198 sunny days per year in Holliston. The US average is 205 sunny days.
Holliston gets some kind of precipitation, on average, 117 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 16
Rain: averages 50 inches of rain a year
Snow: averages 44 inches of snow a year