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Williamstown (MA) Climate by Month

The graphs below provide an overview of the climate in Williamstown (Massachusetts), the United States of America. They present long-term patterns and averages of weather conditions over a 30-year period.

Average day and night temperature

The mean minimum and maximum temperatures over the year.

Monthly precipitation

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

Forecast for Williamstown (MA)

Mon   Nov 18
13°C | 3°C
NW 22 km/h
1.6 mm
partly cloudy and rain

partly cloudy and rain

Tue   Nov 19
10°C | 2°C
N 14 km/h
partly cloudy and no rain

partly cloudy and no rain

Wed   Nov 20
14°C | 0°C
SE 7 km/h
almost clear and no rain

almost clear and no rain

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

During the months of May, June, August 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 Williamstown?
    July has an average maximum temperature of 27°C and is the warmest month of the year.
  • Which is the coldest month in Williamstown?
    The coldest month is January with an average maximum temperature of -0°C.
  • Which is the wettest month in Williamstown?
    October tops the wettest month list with 133 mm of rainfall.
  • Which is the driest month in Williamstown?
    November is the driest month with 71 mm of precipitation.

  • 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.