TODAY NOV16
TEMPERATURE36
HUMIDITY84
PRESSURE29.86
WIND COND.270 10.3
  • 3928
  • 3623Sat60%
  • 3320Sun
  • 3724Mon
  • 3523Tue
daynightWeather update from Illinois Valley Regional Airport at

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Dover 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
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 Dover for July is 75 degrees.
  • The lowest monthly average temperature in Dover for January is 26 degrees.
  • The most monthly precipitation in Dover occurs in August with 8.2 inches.
  • The air quality index in Dover is 97% better than the national average.
  • The pollution index in Dover is 58% better than the national average.

Real Estate Listings In Dover

Compare Dover, IL Weather To Other Cities

Dover 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.
IndexDoverIllinoisNational
Air quality index14150
Pollution index2,097,7403,347,2955,066,862

Dover 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

Dover air quality information

PollutantTotal
Arsenic0.001%
Benzene0.060%
Carbon Tetrachloride0.000%
Lead0.001%
Mercury0.300%

Average monthly Dover temperature with heat index

Dover monthly precipitation with daily maximum

Dover monthly snow depth with daily maximum

Dover monthly wind speed information

Nearby cities with good air quality

City, StatePopulationAir Quality IndexNational Avg.
Arlington, IL199198%
Cherry, IL478198%
Hennepin, IL815198%
Malden, IL309198%
Peru, IL9,913198%
Dover, IL171198%

Cities with similar population

City, StatePopulationAir Quality IndexNational Avg.
Broughton, IL1713922%
Mitchell, IA1711864%
Bay Center, WA1712158%
Southern Ute, CO1714314%
Venetie, AK1713726%
Dover, IL171198%
Source: The Dover, 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.