TODAY MAR07
TEMPERATURE29
HUMIDITY91
PRESSURE30.32
WIND COND.80 14.8
  • 6642Sun
  • 6844Mon
  • 7054Tue
  • 7053Wed30%30%
  • 6242Thu70%
daynightWeather update from Jacksonville Municipal Airport at

Key findings

  • The highest monthly average temperature in Chapin for July is 76 degrees
  • The lowest monthly average temperature in Chapin for January is 29 degrees
  • The most monthly precipitation in Chapin occurs in June with 8 inches
  • The air quality index in Chapin is 20% better than the national average
  • The pollution index in Chapin is 91% better than the national average

Compare Chapin, IL Weather

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      Chapin 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°F39°F29°F3.2"
      February22°F41°F31°F2.9"
      March35°F56°F44°F3.7"
      April44°F68°F55°F6.8"
      May55°F76°F65°F5.2"
      June64°F85°F74°F8.0"
      July66°F87°F76°F5.2"
      August64°F85°F74°F6.3"
      September57°F80°F68°F6.6"
      October46°F68°F56°F3.3"
      November36°F55°F45°F5.0"
      December26°F41°F33°F5.3"

      Chapin 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.
      IndexChapinIllinoisNational
      Air quality index404150
      Pollution index479,4233,347,2955,066,862

      Chapin air quality information

      MeasurementTotal
      Days measured360
      Days with good air quality287
      Days with moderate air quality73
      Days w/ poor A.Q. for sensitive groups0
      Days with unhealthy air quality0

      Chapin air quality information

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

      Average monthly Chapin temperature with heat index

      Chapin monthly precipitation with daily maximum

      Chapin monthly snow depth with daily maximum

      Chapin monthly wind speed information

      Nearby cities with good air quality

      City, StatePopulationAir Quality IndexNational Avg.
      Lynnville, IL554020%
      Winchester, IL1,6364020%
      Murrayville, IL5444020%
      Virginia, IL1,3804020%
      Exeter, IL1054020%
      Chapin, IL4794020%

      Cities with similar population

      City, StatePopulationAir Quality IndexNational Avg.
      Lake Norden, SD4792550%
      Readstown, WI4793530%
      Leonardville, KS4793236%
      Ringsted, IA4791570%
      Romulus, NY4793432%
      Chapin, IL4794020%
      Source: The Chapin, 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.