Winchester, MA has a humid continental climate with warm and humid summers and cold winters. Average high temperatures during the summer months range from the mid-70s to the low-80s, while average lows in the winter dip down to the low 20s. Precipitation is spread out evenly throughout the year, with snowfall occurring mainly from December to March. The town also experiences frequent thunderstorms in the summer months due to its proximity to Lake Cochituate, as well as an occasional tornado. Overall, Winchester's climate is typical of New England.
Winchester, Massachusetts gets 47 inches of rain, on average, per year. The US average is 38 inches of rain per year.
Winchester averages 53 inches of snow per year. The US average is 28 inches of snow per year.
On average, there are 200 sunny days per year in Winchester. The US average is 205 sunny days.
Winchester gets some kind of precipitation, on average, 135 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 82 degrees
Winter Low: the January low is 19
Rain: averages 47 inches of rain a year
Snow: averages 53 inches of snow a year