TODAY DEC14
TEMPERATURE49
HUMIDITY93
PRESSURE30.01
WIND COND.
  • 5243Fri80%90%
  • 4834Sat90%20%
  • 5032Sun
  • 4829Mon
  • 4833Tue
daynightWeather update from Marion - Williamson County Regional Airport at

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Dahlgren 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
January23°F42°F32°F3.7"
February25°F44°F34°F3.5"
March37°F58°F46°F5.2"
April46°F70°F57°F8.7"
May54°F77°F65°F6.1"
June63°F87°F74°F8.3"
July66°F89°F77°F8.1"
August64°F88°F75°F11.0"
September57°F81°F68°F5.5"
October45°F70°F56°F5.6"
November34°F56°F44°F7.5"
December28°F45°F36°F6.9"

Did you know?

  • The highest monthly average temperature in Dahlgren for July is 77 degrees.
  • The lowest monthly average temperature in Dahlgren for January is 32 degrees.
  • The most monthly precipitation in Dahlgren occurs in August with 11 inches.
  • The air quality index in Dahlgren is 21% better than the national average.
  • The pollution index in Dahlgren is 88% better than the national average.

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Compare Dahlgren, IL Weather To Other Cities

Dahlgren 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.
IndexDahlgrenIllinoisNational
Air quality index394150
Pollution index569,1783,347,2955,066,862

Dahlgren 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

Dahlgren air quality information

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

Average monthly Dahlgren temperature with heat index

Dahlgren monthly precipitation with daily maximum

Dahlgren monthly snow depth with daily maximum

Dahlgren monthly wind speed information

Nearby cities with good air quality

City, StatePopulationAir Quality IndexNational Avg.
Benton, IL7,1483922%
Ina, IL2,4503922%
Mount Vernon, IL14,8803922%
West City, IL7893922%
Bluford, IL6943922%
Dahlgren, IL4023922%

Cities with similar population

City, StatePopulationAir Quality IndexNational Avg.
Pollocksville, NC4023334%
Ridgeway, SC4024216%
Bagley, WI4023236%
Weekapaug, RI4024412%
Nevis, MN4022942%
Dahlgren, IL4023922%
Source: The Dahlgren, 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.