TODAY MAY27
TEMPERATURE79
HUMIDITY63
PRESSURE29.91
WIND COND.160 11.4
  • 8065Wed40%60%
  • 7962Thu50%80%
  • 7553Fri40%
  • 7353Sat
  • 7355Sun
daynightWeather update from Logan County Airport at
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Delavan 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°F37°F28°F2.6"
February21°F39°F29°F3.2"
March34°F55°F43°F4.1"
April44°F67°F55°F6.7"
May54°F76°F65°F4.6"
June63°F85°F74°F8.5"
July66°F87°F76°F11.2"
August64°F86°F74°F8.1"
September56°F80°F67°F11.5"
October46°F68°F56°F6.3"
November34°F54°F43°F5.1"
December25°F40°F32°F5.3"

Did you know?

  • The highest monthly average temperature in Delavan for July is 76 degrees.
  • The lowest monthly average temperature in Delavan for January is 28 degrees.
  • The most monthly precipitation in Delavan occurs in September with 11.5 inches.
  • The air quality index in Delavan is 3% better than the national average.
  • The pollution index in Delavan is 87% better than the national average.

Compare Delavan, IL Weather To Other Cities

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      Delavan 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.
      IndexDelavanIllinoisNational
      Air quality index484150
      Pollution index672,0313,347,2955,066,862

      Delavan air quality information

      MeasurementTotal
      Days measured365
      Days with good air quality207
      Days with moderate air quality132
      Days w/ poor A.Q. for sensitive groups21
      Days with unhealthy air quality5

      Delavan air quality information

      PollutantTotal
      Arsenic0.001%
      Benzene0.030%
      Carbon Tetrachloride0.000%
      Lead0.001%
      Mercury0.020%

      Average monthly Delavan temperature with heat index

      Delavan monthly precipitation with daily maximum

      Delavan monthly snow depth with daily maximum

      Delavan monthly wind speed information

      Nearby cities with good air quality

      City, StatePopulationAir Quality IndexNational Avg.
      New Holland, IL1873530%
      Mason City, IL2,2723530%
      Heritage Lake, IL1,4823628%
      Hopedale, IL8713628%
      Armington, IL3633628%
      Delavan, IL1,600484%

      Cities with similar population

      City, StatePopulationAir Quality IndexNational Avg.
      Sedgwick, KS1,6003922%
      Hampden-Sydney, VA1,600275450%
      Goshen, AR1,6013922%
      Lake Mary Jane, FL1,5993628%
      Bangs, TX1,5993334%
      Delavan, IL1,600484%
      Source: The Delavan, 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.