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Key findings

  • The highest monthly average temperature in Columbus for July is 76 degrees
  • The lowest monthly average temperature in Columbus for January is 28 degrees
  • The most monthly precipitation in Columbus occurs in June with 6 inches
  • The air quality index in Columbus is 18% better than the national average
  • The pollution index in Columbus is 21% better than the national average

Compare Columbus, IL Weather

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      Columbus 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
      January20°F37°F28°F2.1"
      February21°F38°F29°F2.0"
      March34°F54°F43°F3.0"
      April44°F66°F55°F4.3"
      May54°F74°F63°F3.7"
      June64°F84°F74°F6.0"
      July66°F86°F76°F4.5"
      August66°F86°F75°F4.2"
      September57°F79°F67°F4.3"
      October45°F64°F54°F3.9"
      November36°F54°F44°F2.7"
      December23°F38°F29°F2.4"

      Columbus 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.
      IndexColumbusIllinoisNational
      Air quality index414150
      Pollution index3,988,7103,347,2955,066,862

      Columbus air quality information

      MeasurementTotal
      Days measured241
      Days with good air quality208
      Days with moderate air quality33
      Days w/ poor A.Q. for sensitive groups0
      Days with unhealthy air quality0

      Columbus air quality information

      PollutantTotal
      Arsenic0.010%
      Benzene0.050%
      Carbon Tetrachloride0.010%
      Lead0.030%
      Mercury0.010%

      Average monthly Columbus temperature with heat index

      Columbus monthly precipitation with daily maximum

      Columbus monthly snow depth with daily maximum

      Columbus monthly wind speed information

      Nearby cities with good air quality

      City, StatePopulationAir Quality IndexNational Avg.
      Lima, IL1214118%
      Mound Station, IL1584118%
      Quincy, IL40,6894118%
      Payson, IL1,2424118%
      Loraine, IL3064118%
      Columbus, IL1154118%

      Cities with similar population

      City, StatePopulationAir Quality IndexNational Avg.
      Marksboro, NJ1153432%
      South Greenfield, MO1153922%
      Kerr, MT1153726%
      Elk Creek, NE1153138%
      St. Anthony, IA1153726%
      Columbus, IL1154118%
      Source: The Columbus, 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.