TODAY MAY05
TEMPERATURE66
HUMIDITY49
PRESSURE30.15
WIND COND.320 13
  • 6442Thu40%20%
  • 6646Fri
  • 5948Sat30%70%
  • 5742Sun80%50%
  • 6144Mon
daynightWeather update from St. Louis Regional Airport at

Key findings

  • The highest monthly average temperature in Donnellson for July is 75.9 degrees
  • The lowest monthly average temperature in Donnellson for January is 29.4 degrees
  • The most monthly precipitation in Donnellson occurs in April with 9.3 inches
  • The air quality index in Donnellson is 9% worse than the national average
  • The pollution index in Donnellson is 87% better than the national average

Compare Donnellson, IL Weather

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      Donnellson 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
      January23°F38°F29°F3.3"
      February24°F40°F31°F3.5"
      March36°F55°F44°F3.9"
      April45°F67°F55°F9.3"
      May55°F75°F64°F5.6"
      June64°F84°F73°F7.9"
      July66°F86°F76°F5.0"
      August65°F86°F74°F5.1"
      September57°F80°F67°F6.0"
      October46°F68°F56°F5.6"
      November36°F54°F44°F3.6"
      December28°F42°F34°F3.6"

      Donnellson 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.
      IndexDonnellsonIllinoisNational
      Air quality index544150
      Pollution index647,2803,347,2955,066,862

      Donnellson 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

      Donnellson air quality information

      PollutantTotal
      Arsenic0.001%
      Benzene0.020%
      Carbon Tetrachloride0.000%
      Lead0.000%
      Mercury0.000%

      Average monthly Donnellson temperature with heat index

      Donnellson monthly precipitation with daily maximum

      Donnellson monthly snow depth with daily maximum

      Donnellson monthly wind speed information

      Nearby cities with good air quality

      City, StatePopulationAir Quality IndexNational Avg.
      Fillmore, IL3174020%
      Litchfield, IL6,9764020%
      Bingham, IL614020%
      Hillsboro, IL7,2874020%
      Butler, IL1544020%
      Donnellson, IL176548%

      Cities with similar population

      City, StatePopulationAir Quality IndexNational Avg.
      Teton Village, WY1764314%
      Edmore, ND1763334%
      White Horse, SD1764412%
      McKeansburg, PA1764216%
      Tolna, ND1763334%
      Donnellson, IL176548%
      Source: The Donnellson, 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.