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Key findings

  • The highest monthly average temperature in South Barrington for July is 73.7 degrees
  • The lowest monthly average temperature in South Barrington for January is 23.8 degrees
  • The most monthly precipitation in South Barrington occurs in May with 4.5 inches
  • The air quality index in South Barrington is 11% worse than the national average
  • The pollution index in South Barrington is 196% worse than the national average

Compare South Barrington, IL Weather

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      South Barrington 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
      January16°F32°F24°F1.4"
      February17°F34°F25°F1.2"
      March30°F49°F38°F2.2"
      April39°F62°F50°F3.8"
      May49°F73°F60°F4.5"
      June59°F82°F70°F4.4"
      July63°F85°F74°F4.1"
      August62°F83°F72°F3.8"
      September54°F77°F65°F3.4"
      October43°F64°F53°F3.1"
      November32°F50°F40°F1.9"
      December21°F36°F29°F2.1"

      South Barrington 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.
      IndexSouth BarringtonIllinoisNational
      Air quality index554150
      Pollution index14,981,3003,347,2955,066,862

      South Barrington 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

      South Barrington air quality information

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

      Average monthly South Barrington temperature with heat index

      South Barrington monthly precipitation with daily maximum

      South Barrington monthly snow depth with daily maximum

      South Barrington monthly wind speed information

      Nearby cities with good air quality

      City, StatePopulationAir Quality IndexNational Avg.
      Mundelein, IL31,5503922%
      Oakwood Hills, IL2,1153922%
      Wauconda, IL13,5493922%
      Knollwood, IL1,7293922%
      Prairie Grove, IL1,7043922%
      South Barrington, IL4,7665510%

      Cities with similar population

      City, StatePopulationAir Quality IndexNational Avg.
      Silverton, OH4,766548%
      Briar, TX4,7673334%
      Crestwood, KY4,768492%
      Flower Hill, NY4,764512%
      Galeville, NY4,7683726%
      South Barrington, IL4,7665510%
      Source: The South Barrington, 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.