TODAY NOV09
TEMPERATURE53
HUMIDITY66
PRESSURE102610
WIND COND.100 13
  • 5850Sat80%
  • 6145Sun20%
  • 6042
  • 5343Tue
  • 5942Wed
daynightWeather update from Chicago, Chicago Midway Airport at
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Weather Quick Facts

  • The highest monthly average temperature in Clarendon Hills for July is 76.3 degrees
  • The lowest monthly average temperature in Clarendon Hills for January is 26.2 degrees
  • The most monthly precipitation in Clarendon Hills occurs in August with 5.1 inches
  • The air quality index in Clarendon Hills is 31% worse than the national average
  • The pollution index in Clarendon Hills is 450% worse than the national average

Compare Clarendon Hills, IL Weather

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      Clarendon Hills 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"

      Clarendon Hills 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.
      IndexClarendon HillsIllinoisNational
      Air quality index554142
      Pollution index14,981,3003,148,6942,726,193

      Clarendon Hills air quality

      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

      Air quality details

      PollutantTotal
      Arsenic0.010%
      Benzene0.140%
      Carbon Tetrachloride0.030%
      Lead0.020%
      Mercury0.010%

      Average monthly Clarendon Hills temperature with heat index

      Clarendon Hills monthly precipitation with daily maximum

      Clarendon Hills monthly snow depth with daily maximum

      Clarendon Hills monthly wind speed information

      Nearby cities with good air quality

      CityPopulationAir Quality IndexNational Avg.
      Bedford Park, IL6695510.0%
      Cicero, IL81,4715510.0%
      Oak Park, IL52,1025510.0%
      Burbank, IL28,4475510.0%
      Hometown, IL4,2165510.0%
      Clarendon Hills, IL8,8345510.0%

      Cities with similar population

      CityPopulationAir Quality IndexNational Avg.
      Glencoe, IL8,8365510.0%
      Frankfort Square, IL8,8315510.0%
      Monmouth, IL8,8373236.0%
      Riverdale, UT8,8264510.0%
      Whitestown, IN8,842548.0%
      Clarendon Hills, IL8,8345510.0%
      Source: The Clarendon Hills, 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.