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Key findings

  • The highest monthly average temperature in Riverton for July is 77 degrees
  • The lowest monthly average temperature in Riverton for January is 29 degrees
  • The most monthly precipitation in Riverton occurs in June with 5.5 inches
  • The air quality index in Riverton is 20% better than the national average
  • The pollution index in Riverton is 1% worse than the national average

Compare Riverton, IL Weather

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      Riverton 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°F38°F29°F2.1"
      February22°F41°F31°F1.9"
      March34°F56°F44°F2.9"
      April44°F68°F56°F4.3"
      May54°F77°F65°F4.5"
      June64°F86°F74°F5.5"
      July66°F88°F77°F4.3"
      August64°F86°F75°F3.2"
      September57°F81°F68°F3.7"
      October46°F69°F56°F3.7"
      November36°F55°F45°F2.5"
      December26°F41°F33°F2.8"

      Riverton 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.
      IndexRivertonIllinoisNational
      Air quality index404150
      Pollution index5,136,0803,347,2955,066,862

      Riverton air quality information

      MeasurementTotal
      Days measured360
      Days with good air quality287
      Days with moderate air quality73
      Days w/ poor A.Q. for sensitive groups0
      Days with unhealthy air quality0

      Riverton air quality information

      PollutantTotal
      Arsenic0.010%
      Benzene0.090%
      Carbon Tetrachloride0.010%
      Lead0.390%
      Mercury0.020%

      Average monthly Riverton temperature with heat index

      Riverton monthly precipitation with daily maximum

      Riverton monthly snow depth with daily maximum

      Riverton monthly wind speed information

      Nearby cities with good air quality

      City, StatePopulationAir Quality IndexNational Avg.
      Chatham, IL12,5694020%
      Grandview, IL1,3884020%
      Rochester, IL3,6874020%
      Athens, IL2,0134020%
      Clear Lake, IL2194020%
      Riverton, IL3,4494020%

      Cities with similar population

      City, StatePopulationAir Quality IndexNational Avg.
      Colonial Heights, TN3,4484510%
      Culloden, WV3,4514216%
      Watertown, FL3,4513824%
      Winnsboro, TX3,4513726%
      Jewett City, CT3,4513726%
      Riverton, IL3,4494020%
      Source: The Riverton, 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.