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Pontiac 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
January19°F35°F27°F3.7"
February20°F37°F28°F2.9"
March33°F52°F41°F4.7"
April42°F66°F53°F5.6"
May54°F76°F64°F6.5"
June63°F84°F73°F7.6"
July65°F85°F75°F10.4"
August62°F83°F72°F7.8"
September55°F79°F66°F7.6"
October44°F66°F54°F4.3"
November34°F53°F42°F5.5"
December24°F39°F31°F3.5"

Did you know?

  • The highest monthly average temperature in Pontiac for July is 75 degrees.
  • The lowest monthly average temperature in Pontiac for January is 27 degrees.
  • The most monthly precipitation in Pontiac occurs in July with 10.4 inches.
  • The air quality index in Pontiac is 27% better than the national average.
  • The pollution index in Pontiac is 52% worse than the national average.

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Pontiac 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.
IndexPontiacIllinoisNational
Air quality index364150
Pollution index7,745,2003,347,2955,066,862

Pontiac air quality information

MeasurementTotal
Days measured362
Days with good air quality309
Days with moderate air quality53
Days w/ poor A.Q. for sensitive groups
Days with unhealthy air quality

Pontiac air quality information

PollutantTotal
Arsenic0.030%
Benzene0.070%
Carbon Tetrachloride0.020%
Lead0.860%
Mercury0.210%

Average monthly Pontiac temperature with heat index

Pontiac monthly precipitation with daily maximum

Pontiac monthly snow depth with daily maximum

Pontiac monthly wind speed information

Nearby cities with good air quality

City, StatePopulationAir Quality IndexNational Avg.
Cornell, IL358198%
Saunemin, IL331198%
Dwight, IL4,168198%
Long Point, IL208198%
Odell, IL951198%
Pontiac, IL12,0163628%

Cities with similar population

City, StatePopulationAir Quality IndexNational Avg.
Platteville, WI12,0203236%
Bucyrus, OH12,0113628%
Clawson, MI12,008524%
Diamond Springs, CA12,0025510%
Edgewater, NJ11,998536%
Pontiac, IL12,0163628%
Source: The Pontiac, 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.