TODAY MAY17
TEMPERATURE70
HUMIDITY54
PRESSURE30.12
WIND COND.110 9.4
  • 7059Mon70%60%
  • 6961Tue70%50%
  • 8063Wed30%
  • 8563Thu
  • 8663Fri
daynightWeather update from Edgar County Airport at

Key findings

  • The highest monthly average temperature in Vermilion for July is 73.7 degrees
  • The lowest monthly average temperature in Vermilion for January is 28.1 degrees
  • The most monthly precipitation in Vermilion occurs in May with 5.7 inches
  • The air quality index in Vermilion is 10% better than the national average
  • The pollution index in Vermilion is 71% better than the national average

Compare Vermilion, IL Weather

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      Vermilion 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
      January21°F37°F28°F3.7"
      February22°F40°F30°F2.7"
      March34°F54°F43°F3.0"
      April44°F67°F54°F5.7"
      May54°F76°F64°F5.7"
      June62°F83°F72°F5.5"
      July64°F85°F74°F5.1"
      August62°F84°F72°F4.8"
      September55°F80°F66°F4.3"
      October45°F67°F55°F4.9"
      November34°F53°F43°F4.5"
      December27°F41°F33°F5.4"

      Vermilion 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.
      IndexVermilionIllinoisNational
      Air quality index454150
      Pollution index1,494,1603,347,2955,066,862

      Vermilion air quality information

      MeasurementTotal
      Days measured365
      Days with good air quality237
      Days with moderate air quality127
      Days w/ poor A.Q. for sensitive groups1
      Days with unhealthy air quality0

      Vermilion air quality information

      PollutantTotal
      Arsenic0.010%
      Benzene0.040%
      Carbon Tetrachloride0.290%
      Lead0.010%
      Mercury0.010%

      Average monthly Vermilion temperature with heat index

      Vermilion monthly precipitation with daily maximum

      Vermilion monthly snow depth with daily maximum

      Vermilion monthly wind speed information

      Nearby cities with good air quality

      City, StatePopulationAir Quality IndexNational Avg.
      Mecca, IN3874510%
      Toad Hop, IN604510%
      New Goshen, IN4344510%
      Universal, IN2304510%
      Marshall, IL3,5364510%
      Vermilion, IL2814510%

      Cities with similar population

      City, StatePopulationAir Quality IndexNational Avg.
      Newark, MD2813628%
      Sherrodsville, OH281468%
      Copeland, KS2811570%
      Thornhill, KY281492%
      Bryant, IN2813530%
      Vermilion, IL2814510%
      Source: The Vermilion, 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.