TODAY FEB25
TEMPERATURE43
HUMIDITY60
PRESSURE29.78
WIND COND.210 14.8
  • 4419Thu
  • 4025Fri
  • 4836Sat40%60%
  • 5137Sun30%
  • 4824Mon30%
daynightWeather update from Willimantic, Windham Airport at

Key findings

  • The highest monthly average temperature in South Windham for July is 74 degrees
  • The lowest monthly average temperature in South Windham for January is 29 degrees
  • The most monthly precipitation in South Windham occurs in June with 5 inches
  • The air quality index in South Windham is 34% better than the national average
  • The pollution index in South Windham is 45% better than the national average

Compare South Windham, CT Weather

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      South Windham 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
      January19°F39°F29°F2.7"
      February19°F40°F29°F3.0"
      March28°F49°F38°F3.5"
      April38°F62°F50°F4.0"
      May48°F73°F60°F3.3"
      June57°F79°F68°F5.0"
      July63°F85°F74°F3.9"
      August60°F82°F71°F4.1"
      September54°F77°F65°F3.7"
      October43°F66°F54°F4.4"
      November33°F54°F43°F3.4"
      December26°F44°F34°F4.0"

      South Windham 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.
      IndexSouth WindhamConnecticutNational
      Air quality index334350
      Pollution index2,806,1507,127,5315,066,862

      South Windham air quality information

      MeasurementTotal
      Days measured334
      Days with good air quality319
      Days with moderate air quality14
      Days w/ poor A.Q. for sensitive groups1
      Days with unhealthy air quality

      South Windham air quality information

      PollutantTotal
      Arsenic0.004%
      Benzene0.030%
      Carbon Tetrachloride0.010%
      Lead0.040%
      Mercury0.010%

      Average monthly South Windham temperature with heat index

      South Windham monthly precipitation with daily maximum

      South Windham monthly snow depth with daily maximum

      South Windham monthly wind speed information

      Nearby cities with good air quality

      City, StatePopulationAir Quality IndexNational Avg.
      Mansfield Center, CT9693334%
      Willimantic, CT17,3393334%
      Brooklyn, CT9063334%
      South Coventry, CT1,1423334%
      Coventry Lake, CT3,1663334%
      South Windham, CT1,3303334%

      Cities with similar population

      City, StatePopulationAir Quality IndexNational Avg.
      Asotin, WA1,3302942%
      Hayfield, MN1,3303628%
      Sturgeon, PA1,3305612%
      Ames, TX1,3304510%
      Hurley, NM1,3303726%
      South Windham, CT1,3303334%
      Source: The South Windham, 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.