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Key findings

  • The highest monthly average temperature in Westville for July is 75 degrees
  • The lowest monthly average temperature in Westville for January is 32 degrees
  • The most monthly precipitation in Westville occurs in June with 4.7 inches
  • The air quality index in Westville is 18% better than the national average
  • The pollution index in Westville is 186% worse than the national average

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      Westville 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
      January23°F40°F32°F2.6"
      February23°F41°F32°F2.8"
      March30°F48°F39°F3.4"
      April40°F60°F50°F4.5"
      May50°F69°F59°F3.8"
      June60°F78°F68°F4.7"
      July66°F84°F75°F3.1"
      August64°F82°F74°F3.7"
      September58°F77°F67°F3.2"
      October47°F66°F57°F4.5"
      November37°F55°F46°F2.9"
      December30°F45°F37°F4.2"

      Westville 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.
      IndexWestvilleNew HavenConnecticut
      Air quality index414143
      Pollution index14,500,30014,500,3007,127,531

      Westville air quality information

      MeasurementTotal
      Days measured365
      Days with good air quality280
      Days with moderate air quality71
      Days w/ poor A.Q. for sensitive groups12
      Days with unhealthy air quality2

      Westville air quality information

      PollutantTotal
      Arsenic0.030%
      Benzene0.140%
      Carbon Tetrachloride0.050%
      Lead0.080%
      Mercury0.060%

      Average monthly Westville temperature with heat index

      Westville monthly precipitation with daily maximum

      Westville monthly snow depth with daily maximum

      Westville monthly wind speed information

      Nearby cities with good air quality

      City, StatePopulationAir Quality IndexNational Avg.
      Cheshire Village, CT6,1034118%
      Meriden, CT60,2034118%
      Orange, CT13,9414118%
      Wallingford Center, CT17,6344118%
      Ansonia, CT18,9504118%
      New Haven, CT130,4054118%

      Cities with similar population

      City, StatePopulationAir Quality IndexNational Avg.
      Thornton, CO130,5115816%
      Waco, TX130,6593824%
      Charleston, SC129,8883824%
      Enterprise, NV129,620548%
      Cedar Rapids, IA129,5373922%
      New Haven, CT130,4054118%
      Source: The Westville, New Haven, 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.