TODAY MAY15
TEMPERATURE54
HUMIDITY71
PRESSURE30.25
WIND COND.
  • 7155Sat50%
  • 7159Sun60%60%
  • 7562Mon50%60%
  • 7662Tue
  • 7964Wed
daynightWeather update from Carmi Municipal Airport at

Key findings

  • The highest monthly average temperature in Grayville for July is 76.5 degrees
  • The lowest monthly average temperature in Grayville for January is 33.5 degrees
  • The most monthly precipitation in Grayville occurs in April with 6.1 inches
  • The air quality index in Grayville is 10% better than the national average
  • The pollution index in Grayville is 94% better than the national average

Compare Grayville, IL Weather

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      Grayville 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°F43°F34°F2.0"
      February28°F46°F36°F2.7"
      March38°F59°F47°F3.6"
      April48°F71°F58°F6.1"
      May57°F78°F67°F4.7"
      June66°F88°F76°F3.8"
      July67°F88°F76°F5.7"
      August65°F87°F75°F2.8"
      September57°F82°F68°F3.2"
      October46°F71°F57°F4.2"
      November36°F57°F46°F4.1"
      December30°F46°F37°F2.7"

      Grayville 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.
      IndexGrayvilleIllinoisNational
      Air quality index454150
      Pollution index317,3873,347,2955,066,862

      Grayville air quality information

      MeasurementTotal
      Days measured365
      Days with good air quality244
      Days with moderate air quality111
      Days w/ poor A.Q. for sensitive groups10
      Days with unhealthy air quality0

      Grayville air quality information

      PollutantTotal
      Arsenic0.000%
      Benzene0.010%
      Carbon Tetrachloride0.000%
      Lead0.000%
      Mercury0.000%

      Average monthly Grayville temperature with heat index

      Grayville monthly precipitation with daily maximum

      Grayville monthly snow depth with daily maximum

      Grayville monthly wind speed information

      Nearby cities with good air quality

      City, StatePopulationAir Quality IndexNational Avg.
      Mount Carmel, IL7,0483628%
      Albion, IL2,2083628%
      Bellmont, IL1933628%
      Bone Gap, IL2233628%
      Keensburg, IL1043628%
      Grayville, IL1,8864510%

      Cities with similar population

      City, StatePopulationAir Quality IndexNational Avg.
      Sea Breeze, NC1,8863432%
      Itta Bena, MS1,8864314%
      Clarendon, TX1,8864412%
      Mayflower, AR1,8854510%
      Patton, PA1,8874118%
      Grayville, IL1,8864510%
      Source: The Grayville, 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.