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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 86% better than the national average.

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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.
Hampden-Sydney, VA1,600275450%
Sedgwick, KS1,6003922%
Garrett, WA1,601205310%
Dale, IN1,6011178%
Goshen, AR1,6013922%
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.