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Key findings

  • The highest monthly average temperature in Macon for August is 78 degrees
  • The lowest monthly average temperature in Macon for February is 29 degrees
  • The most monthly precipitation in Macon occurs in June with 8.1 inches
  • The air quality index in Macon is 12% better than the national average
  • The pollution index in Macon is 86% better than the national average

Compare Macon, IL Weather

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      Macon 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°F38°F31°F6.8"
      February23°F37°F29°F3.4"
      March35°F56°F45°F3.0"
      April43°F65°F54°F4.2"
      May54°F78°F66°F3.1"
      June64°F86°F75°F8.1"
      July65°F86°F76°F4.0"
      August68°F89°F78°F3.9"
      September59°F85°F72°F7.7"
      October49°F71°F60°F7.1"
      November37°F56°F45°F6.1"
      December24°F37°F30°F2.5"

      Macon 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.
      IndexMaconIllinoisNational
      Air quality index444150
      Pollution index703,2183,347,2955,066,862

      Macon air quality information

      MeasurementTotal
      Days measured365
      Days with good air quality255
      Days with moderate air quality110
      Days w/ poor A.Q. for sensitive groups0
      Days with unhealthy air quality0

      Macon air quality information

      PollutantTotal
      Arsenic0.001%
      Benzene0.020%
      Carbon Tetrachloride0.000%
      Lead0.000%
      Mercury0.000%

      Average monthly Macon temperature with heat index

      Macon monthly precipitation with daily maximum

      Macon monthly snow depth with daily maximum

      Macon monthly wind speed information

      Nearby cities with good air quality

      City, StatePopulationAir Quality IndexNational Avg.
      Boody, IL2594412%
      Findlay, IL6804412%
      LaPlace, IL1614412%
      Moweaqua, IL1,8744412%
      Assumption, IL1,2284412%
      Macon, IL1,2044412%

      Cities with similar population

      City, StatePopulationAir Quality IndexNational Avg.
      Rock Hall, MD1,204468%
      New Waverly, TX1,204524%
      Shullsburg, WI1,2042942%
      Cavalier, ND1,2043334%
      Point Roberts, WA1,2033432%
      Macon, IL1,2044412%
      Source: The Macon, 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.