TODAY OCT18
TEMPERATURE
HUMIDITY
PRESSURE
WIND COND.
  • 5738Thu
  • 5646Fri30%
  • 6033Sat
  • 5134Sun
  • 5939Mon
daynightWeather update from Mount Carmel, Mount Carmel Municipal Airport at
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Sumner 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
January25°F41°F32°F3.3"
February27°F43°F34°F2.1"
March38°F57°F46°F4.7"
April48°F70°F58°F9.5"
May58°F78°F67°F4.8"
June66°F86°F75°F2.2"
July67°F87°F76°F8.0"
August65°F86°F75°F1.7"
September57°F81°F68°F5.4"
October47°F70°F57°F1.8"
November37°F56°F45°F6.7"
December30°F44°F36°F2.5"

Did you know?

  • The highest monthly average temperature in Sumner for July is 76 degrees.
  • The lowest monthly average temperature in Sumner for January is 32 degrees.
  • The most monthly precipitation in Sumner occurs in April with 9.5 inches.
  • The air quality index in Sumner is 33% better than the national average.
  • The pollution index in Sumner is 90% better than the national average.

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Compare Sumner, IL Weather To Other Cities

Sumner 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.
IndexSumnerIllinoisNational
Air quality index334150
Pollution index500,0043,347,2955,066,862

Sumner air quality information

MeasurementTotal
Days measured359
Days with good air quality347
Days with moderate air quality12
Days w/ poor A.Q. for sensitive groups
Days with unhealthy air quality

Sumner air quality information

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

Average monthly Sumner temperature with heat index

Sumner monthly precipitation with daily maximum

Sumner monthly snow depth with daily maximum

Sumner monthly wind speed information

Nearby cities with good air quality

City, StatePopulationAir Quality IndexNational Avg.
Allendale, IL6663334%
Flat Rock, IL3293334%
Bridgeport, IL1,4253334%
Lawrenceville, IL4,4643334%
St. Francisville, IL4833334%
Sumner, IL5,0943334%

Cities with similar population

City, StatePopulationAir Quality IndexNational Avg.
King George, VA5,092492%
Fort Lee, VA5,0913922%
Milan, IL5,0975510%
Tucumcari, NM5,0914020%
Monee, IL5,0986020%
Sumner, IL5,0943334%
Source: The Sumner, 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.