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Summerfield 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
January28°F43°F34°F9.8"
February26°F45°F34°F4.7"
March38°F60°F48°F2.9"
April45°F68°F56°F5.6"
May56°F79°F67°F3.7"
June65°F88°F76°F7.6"
July67°F88°F77°F12.3"
August70°F93°F80°F7.2"
September61°F85°F72°F16.1"
October49°F72°F59°F7.5"
November38°F59°F47°F11.9"
December27°F42°F33°F2.9"

Did you know?

  • The highest monthly average temperature in Summerfield for August is 80 degrees.
  • The lowest monthly average temperature in Summerfield for December is 33 degrees.
  • The most monthly precipitation in Summerfield occurs in September with 16.1 inches.
  • The air quality index in Summerfield is 20% worse than the national average.
  • The pollution index in Summerfield is 19% worse than the national average.

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Summerfield 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.
IndexSummerfieldIllinoisNational
Air quality index604150
Pollution index6,055,6403,347,2955,066,862

Summerfield air quality information

MeasurementTotal
Days measured365
Days with good air quality99
Days with moderate air quality231
Days w/ poor A.Q. for sensitive groups33
Days with unhealthy air quality2

Summerfield air quality information

PollutantTotal
Arsenic0.010%
Benzene0.070%
Carbon Tetrachloride0.040%
Lead0.100%
Mercury0.230%

Average monthly Summerfield temperature with heat index

Summerfield monthly precipitation with daily maximum

Summerfield monthly snow depth with daily maximum

Summerfield monthly wind speed information

Nearby cities with good air quality

City, StatePopulationAir Quality IndexNational Avg.
Addieville, IL3033922%
Breese, IL4,5903922%
Germantown, IL1,1593922%
Okawville, IL1,6203922%
Fairview Heights, IL16,7936020%
Summerfield, IL4976020%

Cities with similar population

City, StatePopulationAir Quality IndexNational Avg.
Rothsay, MN4973530%
Murray, NE497484%
Barton, MD4973236%
Forestville, WI4974020%
Delmar, IA497536%
Summerfield, IL4976020%
Source: The Summerfield, 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.