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Thomaston Average Weather

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
January21°F36°F28°F3.9"
February21°F37°F29°F4.4"
March29°F46°F37°F7.7"
April39°F59°F48°F9.6"
May49°F68°F58°F9.0"
June57°F76°F66°F12.4"
July63°F81°F72°F9.8"
August61°F79°F70°F7.9"
September55°F73°F63°F6.6"
October44°F62°F53°F10.7"
November35°F51°F43°F4.9"
December27°F41°F34°F3.7"

Did you know?

  • The highest monthly average temperature in Thomaston for July is 72 degrees.
  • The lowest monthly average temperature in Thomaston for January is 28 degrees.
  • The most monthly precipitation in Thomaston occurs in June with 12.4 inches.
  • The air quality index in Thomaston is 21% better than the national average.
  • The pollution index in Thomaston is 96% better than the national average.

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Compare Thomaston, CT Weather To Other Cities

Thomaston 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.
IndexThomastonConnecticutNational
Air quality index394350
Pollution index161,4277,127,5315,066,862

Thomaston air quality information

MeasurementTotal
Days measured365
Days with good air quality298
Days with moderate air quality65
Days w/ poor A.Q. for sensitive groups2
Days with unhealthy air quality

Thomaston air quality information

PollutantTotal
Arsenic0.000%
Benzene0.002%
Carbon Tetrachloride0.000%
Lead0.000%
Mercury0.000%

Average monthly Thomaston temperature with heat index

Thomaston monthly precipitation with daily maximum

Thomaston monthly snow depth with daily maximum

Thomaston monthly wind speed information

Nearby cities with good air quality

City, StatePopulationAir Quality IndexNational Avg.
Bethlehem Village, CT1,8523922%
Collinsville, CT3,6933922%
Oakville, CT9,1333922%
Torrington, CT35,2273922%
Bristol, CT60,4373922%
Thomaston, CT1,8033922%

Cities with similar population

City, StatePopulationAir Quality IndexNational Avg.
Union City, OH1,803688%
Meredith, NH1,8032942%
North Corbin, KY1,8033628%
Independence, WI1,8032158%
Oberlin, LA1,8034216%
Thomaston, CT1,8033922%
Source: The Thomaston, CT 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.