TODAY AUG15
TEMPERATURE79
HUMIDITY85
PRESSURE29.96
WIND COND.
  • 8270Wed60%60%
  • 8568Thu60%40%
  • 8768Fri60%
  • 8567Sat30%30%
  • 8669Sun20%
daynightWeather update from Centralia Municipal Airport at

Centralia Average Weather

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°F5.0"
February26°F43°F34°F3.4"
March38°F58°F47°F4.9"
April47°F69°F57°F9.7"
May57°F77°F66°F7.4"
June66°F87°F76°F8.6"
July68°F89°F78°F6.6"
August66°F88°F76°F8.7"
September58°F81°F68°F7.6"
October47°F70°F58°F7.1"
November37°F57°F46°F6.0"
December30°F45°F36°F6.6"

Did you know?

  • The highest monthly average temperature in Centralia for July is 78 degrees.
  • The lowest monthly average temperature in Centralia for January is 32 degrees.
  • The most monthly precipitation in Centralia occurs in April with 9.7 inches.
  • The air quality index in Centralia is 21% better than the national average.
  • The pollution index in Centralia is 87% better than the national average.

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Compare Centralia, IL Weather To Other Cities

Centralia 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.
IndexCentraliaIllinoisNational
Air quality index394150
Pollution index647,2803,347,2955,066,862

Centralia air quality information

MeasurementTotal
Days measured243
Days with good air quality204
Days with moderate air quality39
Days w/ poor A.Q. for sensitive groups
Days with unhealthy air quality

Centralia air quality information

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

Average monthly Centralia temperature with heat index

Centralia monthly precipitation with daily maximum

Centralia monthly snow depth with daily maximum

Centralia monthly wind speed information

Nearby cities with good air quality

City, StatePopulationAir Quality IndexNational Avg.
Alma, IL3833922%
Dix, IL4063922%
Irvington, IL7583922%
Nashville, IL3,1643922%
Salem, IL6,9303922%
Centralia, IL12,6963922%

Cities with similar population

City, StatePopulationAir Quality IndexNational Avg.
Sylacauga, AL12,6963824%
Wakefield, VA12,697492%
Woodward, OK12,693688%
Weigelstown, PA12,6934510%
Middle Valley, TN12,6994412%
Centralia, IL12,6963922%
Source: The Centralia, 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.