Wellesley, MA enjoys a humid continental climate that is typical of the Northeastern United States. Summers are usually warm and humid with temperatures ranging from the mid-70s to mid-80s Fahrenheit. Winters are cold and snowy, with temperatures averaging in the low 20s during the coldest months. Spring and fall are short in duration but enjoyable with moderate temperatures and ample rainfall. Overall, Wellesley offers mild weather year round, making it an ideal place for outdoor activities such as hiking, biking, and camping.
Wellesley, Massachusetts gets 49 inches of rain, on average, per year. The US average is 38 inches of rain per year.
Wellesley averages 50 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 Wellesley. The US average is 205 sunny days.
Wellesley 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.
Weather Highlights
Summer High: the July high is around 83 degrees
Winter Low: the January low is 17
Rain: averages 49 inches of rain a year
Snow: averages 50 inches of snow a year