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Key findings

  • The highest monthly average temperature in Ruma for July is 78 degrees
  • The lowest monthly average temperature in Ruma for January is 33 degrees
  • The most monthly precipitation in Ruma occurs in August with 10.7 inches
  • The air quality index in Ruma is 9% worse than the national average
  • The pollution index in Ruma is 85% better than the national average

Compare Ruma, IL Weather

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      Ruma 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°F42°F33°F4.6"
      February27°F45°F35°F2.4"
      March39°F58°F48°F3.7"
      April48°F69°F58°F6.6"
      May57°F77°F66°F10.0"
      June66°F86°F76°F8.8"
      July69°F88°F78°F6.8"
      August67°F87°F76°F10.7"
      September59°F81°F69°F7.4"
      October48°F70°F58°F9.0"
      November38°F57°F47°F6.5"
      December30°F45°F37°F7.7"

      Ruma 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.
      IndexRumaIllinoisNational
      Air quality index544150
      Pollution index753,4733,347,2955,066,862

      Ruma air quality information

      MeasurementTotal
      Days measured365
      Days with good air quality134
      Days with moderate air quality221
      Days w/ poor A.Q. for sensitive groups8
      Days with unhealthy air quality2

      Ruma air quality information

      PollutantTotal
      Arsenic0.001%
      Benzene0.010%
      Carbon Tetrachloride0.001%
      Lead0.020%
      Mercury0.020%

      Average monthly Ruma temperature with heat index

      Ruma monthly precipitation with daily maximum

      Ruma monthly snow depth with daily maximum

      Ruma monthly wind speed information

      Nearby cities with good air quality

      City, StatePopulationAir Quality IndexNational Avg.
      Marissa, IL1,666548%
      New Athens, IL2,106548%
      Baldwin, IL328548%
      Fults, IL26548%
      Prairie du Rocher, IL622548%
      Ruma, IL278548%

      Cities with similar population

      City, StatePopulationAir Quality IndexNational Avg.
      Gary, SD2782550%
      Covington, TX2783334%
      Table Rock, NE2783138%
      Narrowsburg, NY2783824%
      Prairie Home, MO2783824%
      Ruma, IL278548%
      Source: The Ruma, 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.