TODAY OCT22
TEMPERATURE37
HUMIDITY48
PRESSURE30.05
WIND COND.280 13.9
  • 4836Mon
  • 4937Tue30%40%
  • 4328Wed30%
  • 3825Thu
  • 4127Fri
daynightWeather update from North Adams Harriman-and-West Airport at
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Williamstown Average Temperature

In the event that the weather data was unavailable for this city, estimates based upon nearby cities were used.
MonthTemp. (min)Temp. (max)Temp. (avg)Precipitation
January16°F34°F25°F2.3"
February16°F35°F25°F2.1"
March24°F45°F34°F2.8"
April35°F59°F47°F3.0"
May45°F71°F58°F4.0"
June54°F77°F65°F5.0"
July59°F82°F70°F4.5"
August56°F79°F67°F5.0"
September50°F74°F61°F4.3"
October41°F62°F50°F4.7"
November30°F50°F40°F2.4"
December23°F39°F31°F3.4"

Did you know?

  • The highest monthly average temperature in Williamstown for July is 70 degrees.
  • The lowest monthly average temperature in Williamstown for January is 25 degrees.
  • The most monthly precipitation in Williamstown occurs in June with 5 inches.
  • The air quality index in Williamstown is 31% better than the national average.
  • The pollution index in Williamstown is 28% worse than the national average.

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Compare Williamstown, MA Weather To Other Cities

Williamstown air quality index & pollution index

In the event that the air quality/pollution data was unavailable for this city, estimates based upon nearby cities were used.
IndexWilliamstownMassachusettsNational
Air quality index344050
Pollution index6,535,10012,377,8395,066,862

Williamstown air quality information

MeasurementTotal
Days measured365
Days with good air quality333
Days with moderate air quality32
Days w/ poor A.Q. for sensitive groups
Days with unhealthy air quality

Williamstown air quality information

PollutantTotal
Arsenic0.010%
Benzene0.050%
Carbon Tetrachloride0.010%
Lead0.090%
Mercury0.050%

Average monthly Williamstown temperature with heat index

Williamstown monthly precipitation with daily maximum

Williamstown monthly snow depth with daily maximum

Williamstown monthly wind speed information

Nearby cities with good air quality

City, StatePopulationAir Quality IndexNational Avg.
North Bennington, VT1,6883432%
North Adams, MA13,3263432%
Old Bennington, VT1873432%
Hoosick Falls, NY3,4453432%
Readsboro, VT2903432%
Williamstown, MA4,3153432%

Cities with similar population

City, StatePopulationAir Quality IndexNational Avg.
Monte Vista, CO4,3151668%
Garwood, NJ4,315536%
Barrow, AK4,3163726%
Pinetop-Lakeside, AZ4,3144216%
Florence, MS4,3134216%
Williamstown, MA4,3153432%
Source: The Williamstown, MA weather data displayed above is derived from the NOAA (National Oceanic and Atmospheric). Air quality and pollution data is derived from the EPA (United States Environmental Protection Agency). Air quality and pollution levels measured in a particular area may not be representative of the entire county.