Dorchester, NH has a humid continental climate with cold winters and warm summers. Winters in Dorchester tend to be snowy and frigid with temperatures falling below freezing from November through March. Summers are hot and humid with average daily highs reaching into the 70s and 80s Fahrenheit in July and August. Spring and fall are mild seasons with comfortable temperatures making them enjoyable times to visit Dorchester. Precipitation is common throughout all four seasons, though snow is particularly heavy during winter months.
Dorchester, New Hampshire gets 43 inches of rain, on average, per year. The US average is 38 inches of rain per year.
Dorchester averages 72 inches of snow per year. The US average is 28 inches of snow per year.
On average, there are 194 sunny days per year in Dorchester. The US average is 205 sunny days.
Dorchester gets some kind of precipitation, on average, 133 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 79 degrees
Winter Low: the January low is 6
Rain: averages 43 inches of rain a year
Snow: averages 72 inches of snow a year