TODAY MAY30
TEMPERATURE
HUMIDITY
PRESSURE
WIND COND.
  • 7254Sun
  • 7964Mon
  • 8970Tue
  • 9170Wed30%
  • 8870Thu40%30%
daynightWeather update from Salem, Salem-Leckrone Airport at
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Vernon 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
January25°F41°F32°F3.5"
February27°F44°F34°F2.0"
March39°F58°F47°F3.7"
April48°F69°F58°F7.8"
May57°F77°F66°F5.4"
June66°F86°F76°F8.3"
July68°F88°F78°F7.4"
August66°F87°F76°F7.2"
September59°F81°F69°F8.9"
October48°F70°F58°F5.6"
November38°F57°F47°F4.2"
December30°F45°F37°F4.9"

Did you know?

  • The highest monthly average temperature in Vernon for July is 78 degrees.
  • The lowest monthly average temperature in Vernon for January is 32 degrees.
  • The most monthly precipitation in Vernon occurs in September with 8.9 inches.
  • The air quality index in Vernon is 22% better than the national average.
  • The pollution index in Vernon is 87% better than the national average.

Compare Vernon, IL Weather To Other Cities

      vs

      Vernon 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.
      IndexVernonIllinoisNational
      Air quality index394150
      Pollution index647,2803,347,2955,066,862

      Vernon air quality information

      MeasurementTotal
      Days measured243
      Days with good air quality204
      Days with moderate air quality39
      Days w/ poor A.Q. for sensitive groups
      Days with unhealthy air quality

      Vernon air quality information

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

      Average monthly Vernon temperature with heat index

      Vernon monthly precipitation with daily maximum

      Vernon monthly snow depth with daily maximum

      Vernon monthly wind speed information

      Nearby cities with good air quality

      City, StatePopulationAir Quality IndexNational Avg.
      Kinmundy, IL1,0073726%
      St. Peter, IL3883726%
      Vandalia, IL6,7583726%
      Brownstown, IL7103726%
      Mulberry Grove, IL6703726%
      Vernon, IL1113922%

      Cities with similar population

      City, StatePopulationAir Quality IndexNational Avg.
      Grover, CO1114020%
      Golva, ND1113432%
      Birmingham, PA1114510%
      Rodriguez Camp, CA1117958%
      Kenton Vale, KY111548%
      Vernon, IL1113922%
      Source: The Vernon, 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.