TODAY OCT01
TEMPERATURE56
HUMIDITY57
PRESSURE30.02
WIND COND.300 16.6
  • 5342Fri
  • 5746Sat60%
  • 5642Sun70%
  • 6149Mon
  • 6852Tue
daynightWeather update from Chicago, Chicago-O'Hare International Airport at

Key findings

  • The highest monthly average temperature in Jefferson Park for July is 76 degrees
  • The lowest monthly average temperature in Jefferson Park for January is 26 degrees
  • The most monthly precipitation in Jefferson Park occurs in August with 5.1 inches
  • The air quality index in Jefferson Park is 11% worse than the national average
  • The pollution index in Jefferson Park is 25% better than the national average

Compare Chicago, IL Weather

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      Jefferson Park 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
      January20°F34°F26°F1.9"
      February21°F36°F28°F1.6"
      March33°F49°F40°F2.4"
      April42°F62°F51°F3.6"
      May52°F73°F61°F4.3"
      June63°F82°F72°F4.6"
      July68°F86°F76°F3.5"
      August67°F83°F75°F5.1"
      September60°F77°F68°F2.8"
      October48°F65°F55°F3.9"
      November36°F51°F43°F2.2"
      December25°F37°F31°F2.2"

      Jefferson Park 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.
      IndexJefferson ParkChicagoIllinois
      Air quality index555541
      Pollution index3,795,41080,238,7043,347,295

      Jefferson Park air quality information

      MeasurementTotal
      Days measured365
      Days with good air quality121
      Days with moderate air quality227
      Days w/ poor A.Q. for sensitive groups16
      Days with unhealthy air quality1

      Jefferson Park air quality information

      PollutantTotal
      Arsenic0.760%
      Benzene0.560%
      Carbon Tetrachloride0.280%
      Lead0.480%
      Mercury0.480%

      Average monthly Jefferson Park temperature with heat index

      Jefferson Park monthly precipitation with daily maximum

      Jefferson Park monthly snow depth with daily maximum

      Jefferson Park monthly wind speed information

      Nearby cities with good air quality

      City, StatePopulationAir Quality IndexNational Avg.
      Arlington Heights, IL75,7215510%
      Bensenville, IL18,4315510%
      Brookfield, IL18,9665510%
      Countryside, IL5,9655510%
      Elk Grove Village, IL33,2515510%
      Chicago, IL2,714,0175510%

      Cities with similar population

      City, StatePopulationAir Quality IndexNational Avg.
      Houston, TX2,240,582524%
      Philadelphia, PA1,559,938512%
      Phoenix, AZ1,555,3247448%
      Los Angeles, CA3,918,8727244%
      San Antonio, TX1,439,358492%
      Chicago, IL2,714,0175510%
      Source: The Jefferson Park, Chicago, 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.