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Key findings

  • The highest monthly average temperature in Jonesboro for August is 79.7 degrees
  • The lowest monthly average temperature in Jonesboro for February is 35.9 degrees
  • The most monthly precipitation in Jonesboro occurs in November with 11.1 inches
  • The air quality index in Jonesboro is 12% better than the national average
  • The pollution index in Jonesboro is 54% better than the national average

Compare Jonesboro, IL Weather

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      Jonesboro 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
      January30°F44°F36°F7.5"
      February28°F46°F36°F4.9"
      March38°F61°F49°F4.2"
      April45°F67°F56°F5.8"
      May55°F79°F67°F4.4"
      June65°F87°F76°F5.4"
      July66°F87°F76°F3.6"
      August69°F92°F80°F3.8"
      September60°F85°F71°F5.0"
      October48°F73°F59°F5.5"
      November38°F59°F48°F11.1"
      December28°F45°F36°F6.7"

      Jonesboro 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.
      IndexJonesboroIllinoisNational
      Air quality index444150
      Pollution index2,331,2203,347,2955,066,862

      Jonesboro air quality information

      MeasurementTotal
      Days measured364
      Days with good air quality261
      Days with moderate air quality103
      Days w/ poor A.Q. for sensitive groups0
      Days with unhealthy air quality0

      Jonesboro air quality information

      PollutantTotal
      Arsenic0.010%
      Benzene0.030%
      Carbon Tetrachloride0.004%
      Lead0.002%
      Mercury0.260%

      Average monthly Jonesboro temperature with heat index

      Jonesboro monthly precipitation with daily maximum

      Jonesboro monthly snow depth with daily maximum

      Jonesboro monthly wind speed information

      Nearby cities with good air quality

      City, StatePopulationAir Quality IndexNational Avg.
      Grand Tower, IL4574314%
      Alto Pass, IL3824412%
      McClure, IL4174412%
      Ullin, IL4234412%
      Anna, IL4,3324412%
      Jonesboro, IL2,0054412%

      Cities with similar population

      City, StatePopulationAir Quality IndexNational Avg.
      Bellport, NY2,0054314%
      Burnham, PA2,0054412%
      McLendon-Chisholm, TX2,005512%
      Cheney, KS2,0054020%
      Conyngham, PA2,0053824%
      Jonesboro, IL2,0054412%
      Source: The Jonesboro, 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.