Williamstown (MA) Weather & Climate: Best Time to Visit
Average temperatures, rainfall, sunshine and the best time to visit Williamstown.
Climate overview of Williamstown
Williamstown, Massachusetts, United States of America, sees big temperature differences between seasons, with July peaking at 27°C (81°F) and January dropping to 0°C (32°F).
Rain/snowfall is high, totalling around 1204 mm (47 in) per year. October is the wettest month and November the driest.
Williamstown Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Williamstown — and find the best time to visit.
Monthly Temperature in Williamstown
Visitors to Williamstown can expect significant temperature changes throughout the year. Average maximum daytime temperatures range from a comfortable 27°C (81°F) in July, the warmest time of the year, to a very cold 0°C (32°F) during cooler months like January.
At night, you can expect temperatures ranging from 15°C (59°F) in July to around -10°C (14°F) during January.
Check out our detailed temperature page for more information.
Temperature ranges by month
Rainfall in Williamstown
Williamstown is known for its substantial rain/snowfall, with annual precipitation reaching 1204 mm (47 in). While rainfall varies throughout the year, each season offers its own charm. October brings wetter days averaging 133 mm (5.2 in) of precipitation, spread over 14 rainy days.
In contrast, the driest month November experiences a drier climate, with about 71 mm (2.8 in) of rainfall spread across 11 rainy days. For more details, please visit our Williamstown Precipitation page.
The mean monthly precipitation over the year, including rain, hail, and snow
The average number of days each month with precipitation
Best Time to Visit Williamstown
The weather does bring rainfall during this period, between 94 mm (3.7 in) and 130 mm (5.1 in). Looking for inspiration on where to travel this year? We have a tool that recommends destinations based on your ideal conditions. Find out where to go with our weather planner.
Frequently asked questions about the climate in Williamstown
What is the best time to visit Williamstown?
May typically offers the most optimal weather in Williamstown. In contrast, January, February, March, November and December tend to have less optimal conditions.
What temperatures can I expect in Williamstown?
Daytime highs range from 0°C (32°F) in January to 27°C (81°F) in July. Nighttime lows range from -10°C (14°F) to 15°C (59°F). Temperatures vary considerably through the year.
How much rain does Williamstown get?
Annual rainfall is around 1204 mm (47 in). October is the wettest month with 133 mm (5.2 in), while November is the driest with 71 mm (2.8 in).
Williamstown 3-Day Forecast
Williamstown (MA) 3-Day Forecast
Williamstown on the map
Williamstown is highlighted — select any city to see its climate.
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