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Marion 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 Marion for July is 79 degrees.
  • The lowest monthly average temperature in Marion for January is 35 degrees.
  • The most monthly precipitation in Marion occurs in June with 13.3 inches.
  • The air quality index in Marion is 21% better than the national average.
  • The pollution index in Marion is 97% better than the national average.

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Marion 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.
IndexMarionIllinoisNational
Air quality index394150
Pollution index125,3593,347,2955,066,862

Marion 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

Marion air quality information

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

Average monthly Marion temperature with heat index

Marion monthly precipitation with daily maximum

Marion monthly snow depth with daily maximum

Marion monthly wind speed information

Nearby cities with good air quality

City, StatePopulationAir Quality IndexNational Avg.
Goreville, IL1,1783628%
New Burnside, IL2073628%
Creal Springs, IL3893628%
Stonefort, IL4203628%
Cambria, IL1,3373922%
Marion, IL17,7033922%

Cities with similar population

City, StatePopulationAir Quality IndexNational Avg.
Martha Lake, WA17,703492%
Tiffin, OH17,7013628%
Hannibal, MO17,7073432%
Wahiawa, HI17,6963040%
Glenvar Heights, FL17,6874118%
Marion, IL17,7033922%
Source: The Marion, 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.