Average monthly snow and rainfall in Williamstown (MA)
The mean monthly precipitation over the year in Williamstown (Massachusetts), including rain, snow, hail.
- A lot of rain (rainy season) falls in the months: June, July, August, September, October and December.
- On average, October is the wettest month with 133 mm of precipitation.
- On average, November is the driest month with 71 mm of precipitation.
- The average amount of annual precipitation is 1204 mm.
Forecast for Williamstown (MA)
broken clouds and thunder
almost clear and no rain
partly cloudy and rain