TODAY JUL21
TEMPERATURE78
HUMIDITY82
PRESSURE29.94
WIND COND.50 10.3
  • 7464Mon20%
  • 7965Tue
  • 8266Wed
  • 8568Thu
  • 8771Fri
daynightWeather update from Chicago, Chicago Midway Airport at
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Chatham 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"

Did you know?

  • The highest monthly average temperature in Chatham for July is 76 degrees.
  • The lowest monthly average temperature in Chatham for January is 26 degrees.
  • The most monthly precipitation in Chatham occurs in August with 5.1 inches.
  • The air quality index in Chatham is 21% worse than the national average.
  • The pollution index in Chatham is 1484% worse than the national average.

Compare Chicago, IL Weather To Other Cities

Chatham 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.
IndexChathamChicagoIllinois
Air quality index606041
Pollution index80,238,70480,238,7043,347,295

Chatham air quality information

MeasurementTotal
Days measured365
Days with good air quality72
Days with moderate air quality281
Days w/ poor A.Q. for sensitive groups11
Days with unhealthy air quality1

Chatham air quality information

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

Average monthly Chatham temperature with heat index

Chatham monthly precipitation with daily maximum

Chatham monthly snow depth with daily maximum

Chatham monthly wind speed information

Nearby cities with good air quality

City, StatePopulationAir Quality IndexNational Avg.
North Riverside, IL6,9836020%
Olympia Fields, IL4,8886020%
Palos Hills, IL17,5456020%
Riverdale, IL13,0476020%
Robbins, IL5,2166020%
Chicago, IL2,714,0176020%

Cities with similar population

City, StatePopulationAir Quality IndexNational Avg.
Houston, TX2,240,582524%
Philadelphia, PA1,559,9385714%
Phoenix, AZ1,555,3247448%
Los Angeles, CA3,918,8727448%
San Antonio, TX1,439,3584510%
Chicago, IL2,714,0176020%
Source: The Chatham, 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.
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