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Westborough (MA) Weather and Climate: A Comprehensive Guide

Westborough experiences great temperature shifts. The city's weather can transition from warm days to very cold weather. It also experiences much rain/snowfall throughout the year. Now, let’s break down all the climate details for a clearer picture.

Average maximum day and minimum night temperature

The climate in Westborough is known for significant temperature differences throughout the year, making the weather dynamic. Average daytime temperatures reach a comfortable 29°C in July. In February, the coolest month of the year, temperatures drop to a very cold 2°C.

At night, you can expect cooler temperatures, with averages dropping to around -9°C during this month. Check out our detailed temperature page for more information.

Temperature ranges by month

Precipitation and rainy days

Westborough has a notably wet climate with abundant precipitation, recording 1227 mm of rain/snowfall per year. Despite minor fluctuations, Westborough enjoys fairly consistent precipitation throughout the year. In June, you can expect around 133 mm of precipitation, while in September, Westborough receives about 84 mm.

The mean monthly precipitation over the year, including rain, hail and snow

Sunshine over the year

Westborough can be enjoyed more throughout the sunniest month of May under a blue sky, with approximately 10.0 hours of sunshine daily. In contrast, the city experiences much darker days in December, with only 4.7 hours of sunlight per day. Visit our detailed sunshine hours page for more information.

Monthly hours of sunshine

Data from: Boston, the United States of America (48 KM, 30 Miles).

Daily hours of sunshine

Data from: Boston, the United States of America (48 KM, 30 Miles).

Forecast for Westborough (MA)

Sat   Dec 21
-1°C | -10°C
NW 6 m/s
partly cloudy and no rain

partly cloudy and no rain

Sun   Dec 22
-6°C | -14°C
NW 4 m/s
clear and no rain

clear and no rain

Mon   Dec 23
-2°C | -14°C
S 3 m/s
almost clear and no rain

almost clear and no rain

The best time of year to visit Westborough in the United States of America

During the months of May, June and September you are most likely to experience good weather with pleasant average temperatures that fall between 20°C and 26°C.

Other facts from our historical weather data:
  • Which is the warmest month in Westborough?
    July has an average maximum temperature of 29°C and is the warmest month of the year.
  • Which is the coldest month in Westborough?
    The coldest month is February with an average maximum temperature of 2°C.
  • Which is the wettest month in Westborough?
    June tops the wettest month list with 133 mm of rainfall.
  • Which is the driest month in Westborough?
    September is the driest month with 84 mm of precipitation.
  • Which is the sunniest month in Westborough?
    May is the sunniest month with an average of 301 hours of sunshine.

  • No idea where to travel to this year? We have a tool that recommends destinations based on your ideal conditions. Find out where to go with our weather planner.