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Key findings

  • The highest monthly average temperature in Fairmont City for July is 78.8 degrees
  • The lowest monthly average temperature in Fairmont City for January is 32.5 degrees
  • The most monthly precipitation in Fairmont City occurs in April with 5.3 inches
  • The air quality index in Fairmont City is 9% worse than the national average
  • The pollution index in Fairmont City is 122% worse than the national average

Compare Fairmont City, IL Weather

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      Fairmont City 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
      January24°F43°F32°F1.8"
      February26°F45°F34°F1.6"
      March37°F59°F47°F3.7"
      April47°F70°F58°F5.3"
      May56°F78°F67°F4.8"
      June65°F88°F76°F4.4"
      July68°F90°F79°F3.9"
      August66°F89°F77°F3.1"
      September58°F82°F69°F4.2"
      October47°F71°F58°F3.1"
      November36°F58°F46°F2.8"
      December29°F45°F36°F3.1"

      Fairmont City 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.
      IndexFairmont CityIllinoisNational
      Air quality index544150
      Pollution index6,055,6403,148,6942,726,193

      Fairmont City air quality information

      MeasurementTotal
      Days measured365
      Days with good air quality134
      Days with moderate air quality221
      Days w/ poor A.Q. for sensitive groups8
      Days with unhealthy air quality2

      Fairmont City air quality information

      PollutantTotal
      Arsenic0.010%
      Benzene0.070%
      Carbon Tetrachloride0.040%
      Lead0.100%
      Mercury0.230%

      Average monthly Fairmont City temperature with heat index

      Fairmont City monthly precipitation with daily maximum

      Fairmont City monthly snow depth with daily maximum

      Fairmont City monthly wind speed information

      Nearby cities with good air quality

      CityPopulationAir Quality IndexNational Avg.
      Maplewood, MO7,948548.0%
      Dupo, IL3,966548.0%
      Bel-Nor, MO1,393548.0%
      Charlack, MO1,362548.0%
      Glen Echo Park, MO132548.0%
      Fairmont City, IL2,349548.0%

      Cities with similar population

      CityPopulationAir Quality IndexNational Avg.
      Junction City, KY2,3493334.0%
      Arnold Line, MS2,3493530.0%
      Water Mill, NY2,3494118.0%
      Victoria, Subd. A, NS2,349n/a 
      Kent Acres, DE2,3484216.0%
      Fairmont City, IL2,349548.0%
      Source: The Fairmont City, IL 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.