TODAY AUG16
TEMPERATURE73
HUMIDITY96
PRESSURE29.93
WIND COND.
  • 8366Thu40%40%
  • 8365Fri30%30%
  • 8464Sat
  • 8465Sun
  • 8062Mon60%50%
daynightWeather update from Illinois Valley Regional Airport at

Granville 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
January18°F34°F26°F3.3"
February19°F35°F26°F3.0"
March32°F51°F40°F4.3"
April42°F64°F52°F7.2"
May53°F75°F63°F8.0"
June62°F83°F72°F7.5"
July66°F85°F75°F7.1"
August64°F83°F73°F8.2"
September56°F78°F66°F6.3"
October45°F65°F54°F6.6"
November34°F51°F42°F4.3"
December23°F37°F30°F3.5"

Did you know?

  • The highest monthly average temperature in Granville for July is 75 degrees.
  • The lowest monthly average temperature in Granville for January is 26 degrees.
  • The most monthly precipitation in Granville occurs in August with 8.2 inches.
  • The air quality index in Granville is 97% better than the national average.
  • The pollution index in Granville is 93% better than the national average.

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Compare Granville, IL Weather To Other Cities

Granville 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.
IndexGranvilleIllinoisNational
Air quality index14150
Pollution index339,1563,347,2955,066,862

Granville air quality information

MeasurementTotal
Days measured351
Days with good air quality351
Days with moderate air quality
Days w/ poor A.Q. for sensitive groups
Days with unhealthy air quality

Granville air quality information

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

Average monthly Granville temperature with heat index

Granville monthly precipitation with daily maximum

Granville monthly snow depth with daily maximum

Granville monthly wind speed information

Nearby cities with good air quality

City, StatePopulationAir Quality IndexNational Avg.
Cherry, IL478198%
Hennepin, IL815198%
LaSalle, IL9,484198%
Magnolia, IL320198%
Oglesby, IL3,834198%
Granville, IL1,305198%

Cities with similar population

City, StatePopulationAir Quality IndexNational Avg.
Annetta, TX1,3053334%
Colwich, KS1,3053922%
Bent Creek, NC1,3054020%
Salina, OK1,3053628%
Sciotodale, OH1,3051962%
Granville, IL1,305198%
Source: The Granville, 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.