TODAY NOV09
TEMPERATURE54
HUMIDITY77
PRESSURE101970
WIND COND.100 16.6
  • 6440Sun20%
  • 6039
  • 5742Tue
  • 6242Wed40%30%
  • 5636Thu
daynightWeather update from University of Illinois - Willard at
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Weather Quick Facts

  • The highest monthly average temperature in Champaign for July is 74.3 degrees
  • The lowest monthly average temperature in Champaign for January is 26.5 degrees
  • The most monthly precipitation in Champaign occurs in June with 5 inches
  • The air quality index in Champaign is equal to the national average
  • The pollution index in Champaign is 45% better than the national average

Compare Champaign, IL Weather

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      Champaign 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
      January18°F36°F27°F1.7"
      February19°F38°F28°F1.8"
      March33°F54°F42°F2.3"
      April42°F67°F54°F4.2"
      May53°F77°F64°F4.2"
      June63°F85°F73°F5.0"
      July64°F85°F74°F4.5"
      August62°F84°F73°F2.4"
      September56°F80°F67°F3.4"
      October44°F67°F55°F3.7"
      November33°F53°F42°F2.8"
      December24°F39°F31°F2.7"

      Champaign 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.
      IndexChampaignIllinoisNational
      Air quality index424142
      Pollution index1,494,1603,148,6942,726,193

      Champaign air quality

      MeasurementTotal
      Days measured365
      Days with good air quality281
      Days with moderate air quality84
      Days w/ poor A.Q. for sensitive groups0
      Days with unhealthy air quality0

      Air quality details

      PollutantTotal
      Arsenic0.010%
      Benzene0.040%
      Carbon Tetrachloride0.290%
      Lead0.010%
      Mercury0.010%

      Average monthly Champaign temperature with heat index

      Champaign monthly precipitation with daily maximum

      Champaign monthly snow depth with daily maximum

      Champaign monthly wind speed information

      Nearby cities with good air quality

      CityPopulationAir Quality IndexNational Avg.
      Fisher, IL1,9174216.0%
      Thomasboro, IL1,0364216.0%
      Pesotum, IL4474216.0%
      Urbana, IL42,4614216.0%
      Ivesdale, IL2504216.0%
      Champaign, IL88,2884216.0%

      Cities with similar population

      CityPopulationAir Quality IndexNational Avg.
      Newton, MA88,3224314.0%
      Reading, PA88,3334216.0%
      Palm Coast, FL88,2223138.0%
      Conroe, TX88,369524.0%
      O'Fallon, MO88,132548.0%
      Champaign, IL88,2884216.0%
      Source: The Champaign, 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.