TODAY MAY13
TEMPERATURE45
HUMIDITY63
PRESSURE30.19
WIND COND.330 7.6
  • 6946Thu
  • 7348Fri30%
  • 7248Sat30%
  • 7248Sun
  • 7249Mon
daynightWeather update from Oxford, Waterbury-Oxford Airport at

Key findings

  • The highest monthly average temperature in Thomaston for July is 71.8 degrees
  • The lowest monthly average temperature in Thomaston for January is 28.2 degrees
  • The most monthly precipitation in Thomaston occurs in June with 12.4 inches
  • The air quality index in Thomaston is 26% better than the national average
  • The pollution index in Thomaston is 97% better than the national average

Compare Thomaston, CT Weather

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      Thomaston 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
      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"

      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 index374350
      Pollution index161,4277,127,5315,066,862

      Thomaston air quality information

      MeasurementTotal
      Days measured365
      Days with good air quality342
      Days with moderate air quality23
      Days w/ poor A.Q. for sensitive groups0
      Days with unhealthy air quality0

      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.
      Collinsville, CT3,6933726%
      Terryville, CT5,4313726%
      Litchfield, CT1,3293726%
      New Hartford Center, CT1,4093726%
      Bethlehem Village, CT1,8523726%
      Thomaston, CT1,8033726%

      Cities with similar population

      City, StatePopulationAir Quality IndexNational Avg.
      Union City, OH1,803688%
      Meredith, NH1,8033138%
      North Corbin, KY1,8034020%
      Independence, WI1,8031570%
      Oberlin, LA1,8034510%
      Thomaston, CT1,8033726%
      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.