TODAY JUN05
TEMPERATURE64
HUMIDITY100
PRESSURE29.89
WIND COND.
  • 9172Fri20%20%
  • 8964Sat20%20%
  • 8764Sun
  • 8972Mon
  • 8869Tue
daynightWeather update from Marion - Williamson County Regional Airport at
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Herrin 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
January27°F44°F35°F2.5"
February29°F46°F37°F1.6"
March40°F59°F49°F4.1"
April50°F70°F59°F10.7"
May58°F78°F68°F10.5"
June67°F87°F77°F13.3"
July70°F88°F79°F0.5"
August68°F88°F77°F0.4"
September61°F81°F70°F1.2"
October50°F70°F59°F0.8"
November39°F58°F48°F5.8"
December32°F47°F39°F1.2"

Did you know?

  • The highest monthly average temperature in Herrin for July is 79 degrees.
  • The lowest monthly average temperature in Herrin for January is 35 degrees.
  • The most monthly precipitation in Herrin occurs in June with 13.3 inches.
  • The air quality index in Herrin is 22% better than the national average.
  • The pollution index in Herrin is 98% better than the national average.

Compare Herrin, IL Weather To Other Cities

      vs

      Herrin 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.
      IndexHerrinIllinoisNational
      Air quality index394150
      Pollution index125,3593,347,2955,066,862

      Herrin 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

      Herrin air quality information

      PollutantTotal
      Arsenic0.000%
      Benzene0.003%
      Carbon Tetrachloride0.000%
      Lead0.000%
      Mercury0.000%

      Average monthly Herrin temperature with heat index

      Herrin monthly precipitation with daily maximum

      Herrin monthly snow depth with daily maximum

      Herrin monthly wind speed information

      Nearby cities with good air quality

      City, StatePopulationAir Quality IndexNational Avg.
      Creal Springs, IL3893628%
      Makanda, IL5903628%
      Buckner, IL4673922%
      Carterville, IL5,7423922%
      Crainville, IL1,4563922%
      Herrin, IL12,8683922%

      Cities with similar population

      City, StatePopulationAir Quality IndexNational Avg.
      Grenada, MS12,8633334%
      Grass Valley, CA12,8614216%
      Gaffney, SC12,8593628%
      Glendale, WI12,8804510%
      Luling, LA12,8554510%
      Herrin, IL12,8683922%
      Source: The Herrin, 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.