Westborough, MA has a humid continental climate which is characterized by warm and humid summers, cold winters and four distinct seasons. Summers in Westborough are typically hot and humid, with temperatures ranging between the mid-70s to low-90s Fahrenheit. Winters are often cold, averaging around 27 degrees Fahrenheit during the day and falling below freezing at night. Spring and fall are usually mild with temperatures ranging from the mid-40s to low 70s. On average, Westborough receives around 46 inches of precipitation each year, mostly during the summer months when thunderstorms are common.
Westborough, Massachusetts gets 49 inches of rain, on average, per year. The US average is 38 inches of rain per year.
Westborough averages 45 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 Westborough. The US average is 205 sunny days.
Westborough 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 15
Rain: averages 49 inches of rain a year
Snow: averages 45 inches of snow a year