Current weather conditions temporarily unavailable!
How would you rate the weather in Grafton?View resultsWrite a review to give others more information about this area.
How would you rate the air quality in Grafton?View resultsWrite a review to give others more information about this area.

Grafton 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
January26°F41°F33°F9.0"
February25°F43°F33°F4.8"
March36°F60°F47°F3.9"
April44°F68°F55°F4.3"
May56°F80°F67°F4.3"
June65°F87°F76°F5.8"
July66°F89°F77°F3.9"
August69°F91°F79°F4.6"
September60°F85°F71°F4.9"
October48°F71°F59°F3.7"
November36°F58°F46°F7.6"
December25°F40°F32°F2.5"

Did you know?

  • The highest monthly average temperature in Grafton for August is 79 degrees.
  • The lowest monthly average temperature in Grafton for December is 32 degrees.
  • The most monthly precipitation in Grafton occurs in January with 9 inches.
  • The air quality index in Grafton is 20% worse than the national average.
  • The pollution index in Grafton is 75% worse than the national average.

Find Real Estate Listings In Grafton

Location
Price
Bedrooms
Bathrooms
 

New Real Estate Listings In Grafton

Compare Grafton, IL Weather To Other Cities

Grafton 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.
IndexGraftonIllinoisNational
Air quality index604150
Pollution index8,870,2303,347,2955,066,862

Grafton 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

Grafton air quality information

PollutantTotal
Arsenic0.180%
Benzene0.060%
Carbon Tetrachloride0.020%
Lead0.030%
Mercury0.120%

Average monthly Grafton temperature with heat index

Grafton monthly precipitation with daily maximum

Grafton monthly snow depth with daily maximum

Grafton monthly wind speed information

Nearby cities with good air quality

City, StatePopulationAir Quality IndexNational Avg.
Alton, IL27,1756020%
Fidelity, IL1616020%
Jerseyville, IL8,5026020%
Bridgeton, MO11,6986020%
O'Fallon, MO84,0186020%
Grafton, IL6886020%

Cities with similar population

City, StatePopulationAir Quality IndexNational Avg.
Davis, IL6883138%
Taholah, WA6882158%
Engelhard, NC688394%
Glasgow, OR6881080%
Iberia, MO6883726%
Grafton, IL6886020%
Source: The Grafton, 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.