TODAY NOV04
TEMPERATURE54
HUMIDITY59
PRESSURE103350
WIND COND.110 20.5
  • 6959Tue
  • 7553Wed
  • 6644Thu
  • 6344Fri
  • 6040Sat
daynightWeather update from Bridgeport, Sikorsky Memorial Airport at
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Weather Quick Facts

  • The highest monthly average temperature in Westport for July is 75.6 degrees
  • The lowest monthly average temperature in Westport for January is 31.9 degrees
  • The most monthly precipitation in Westport occurs in December with 5.4 inches
  • The air quality index in Westport is 2% worse than the national average
  • The pollution index in Westport is 522% worse than the national average

Compare Westport, CT Weather

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      Westport 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°F41°F32°F3.3"
      February23°F42°F32°F3.6"
      March30°F50°F39°F4.0"
      April41°F62°F50°F4.3"
      May50°F71°F59°F3.9"
      June60°F80°F69°F4.9"
      July67°F85°F76°F3.5"
      August66°F84°F74°F4.2"
      September59°F78°F68°F3.8"
      October48°F67°F57°F4.7"
      November38°F56°F47°F3.0"
      December29°F46°F38°F5.4"

      Westport 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.
      IndexWestportConnecticutNational
      Air quality index434342
      Pollution index16,950,7008,629,8832,726,193

      Westport air quality

      MeasurementTotal
      Days measured365
      Days with good air quality262
      Days with moderate air quality82
      Days w/ poor A.Q. for sensitive groups18
      Days with unhealthy air quality3

      Air quality details

      PollutantTotal
      Arsenic0.030%
      Benzene0.140%
      Carbon Tetrachloride0.070%
      Lead0.080%
      Mercury0.030%

      Average monthly Westport temperature with heat index

      Westport monthly precipitation with daily maximum

      Westport monthly snow depth with daily maximum

      Westport monthly wind speed information

      Nearby cities with good air quality

      CityPopulationAir Quality IndexNational Avg.
      Derby, CT12,4204118.0%
      Shelton, CT41,1624118.0%
      Stony Brook University, NY8,5744314.0%
      Cos Cob, CT7,0654314.0%
      Milford city, CT52,9024314.0%
      Westport, CT27,5114314.0%

      Cities with similar population

      CityPopulationAir Quality IndexNational Avg.
      King, ON27,487n/a 
      Millville, NJ27,4854020.0%
      Danvers, MA27,5494314.0%
      Wasco, CA27,5536734.0%
      Yukon, OK27,557484.0%
      Westport, CT27,5114314.0%
      Source: The Westport, 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.