TODAY NOV07
TEMPERATURE34
HUMIDITY100
PRESSURE102780
WIND COND.
  • 5939Fri
  • 5444Sat30%50%
  • 5640Sun
  • 6039
  • 6248Tue30%
daynightWeather update from Washington at
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Weather Quick Facts

  • The highest monthly average temperature in West Chester for July is 75.4 degrees
  • The lowest monthly average temperature in West Chester for January is 22.5 degrees
  • The most monthly precipitation in West Chester occurs in June with 6.1 inches
  • The air quality index in West Chester is 17% better than the national average
  • The pollution index in West Chester is 79% better than the national average

Compare West Chester, IA Weather

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      West Chester 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
      January15°F32°F23°F1.0"
      February17°F35°F25°F1.1"
      March30°F51°F39°F2.4"
      April41°F64°F52°F4.8"
      May51°F74°F62°F4.6"
      June62°F84°F73°F6.1"
      July66°F86°F75°F4.7"
      August64°F84°F73°F4.5"
      September55°F78°F66°F3.3"
      October43°F65°F53°F3.3"
      November31°F51°F40°F1.9"
      December19°F35°F27°F1.9"

      West Chester 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.
      IndexWest ChesterIowaNational
      Air quality index353942
      Pollution index577,8381,154,5352,726,193

      West Chester air quality

      MeasurementTotal
      Days measured364
      Days with good air quality278
      Days with moderate air quality86
      Days w/ poor A.Q. for sensitive groups0
      Days with unhealthy air quality0

      Air quality details

      PollutantTotal
      Arsenic0.000%
      Benzene0.010%
      Carbon Tetrachloride0.001%
      Lead0.090%
      Mercury0.000%

      Average monthly West Chester temperature with heat index

      West Chester monthly precipitation with daily maximum

      West Chester monthly snow depth with daily maximum

      West Chester monthly wind speed information

      Nearby cities with good air quality

      CityPopulationAir Quality IndexNational Avg.
      Olds, IA1663236.0%
      Crawfordsville, IA3343236.0%
      Kalona, IA2,5283530.0%
      Washington, IA7,3183530.0%
      Coppock, IA223530.0%
      West Chester, IA873530.0%

      Cities with similar population

      CityPopulationAir Quality IndexNational Avg.
      Mooresville, AL874118.0%
      Ozan, AR873922.0%
      Cokedale, CO871570.0%
      Wiota, IA874020.0%
      Reubens, ID872942.0%
      West Chester, IA873530.0%
      Source: The West Chester, IA 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.