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Thomson Average Weather

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
January15°F32°F23°F2.0"
February16°F34°F25°F2.7"
March31°F50°F39°F5.0"
April41°F64°F51°F6.5"
May51°F75°F62°F4.6"
June61°F83°F71°F8.9"
July64°F85°F74°F4.5"
August61°F83°F72°F4.9"
September54°F78°F65°F3.6"
October43°F64°F53°F3.1"
November32°F50°F40°F2.9"
December20°F35°F28°F4.0"

Did you know?

  • The highest monthly average temperature in Thomson for July is 74 degrees.
  • The lowest monthly average temperature in Thomson for January is 23 degrees.
  • The most monthly precipitation in Thomson occurs in June with 8.9 inches.
  • The air quality index in Thomson is 6% worse than the national average.
  • The pollution index in Thomson is 68% better than the national average.

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Compare Thomson, IL Weather To Other Cities

Thomson 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.
IndexThomsonIllinoisNational
Air quality index534150
Pollution index1,592,9103,347,2955,066,862

Thomson air quality information

MeasurementTotal
Days measured365
Days with good air quality158
Days with moderate air quality204
Days w/ poor A.Q. for sensitive groups3
Days with unhealthy air quality

Thomson air quality information

PollutantTotal
Arsenic0.090%
Benzene0.030%
Carbon Tetrachloride0.000%
Lead0.010%
Mercury0.010%

Average monthly Thomson temperature with heat index

Thomson monthly precipitation with daily maximum

Thomson monthly snow depth with daily maximum

Thomson monthly wind speed information

Nearby cities with good air quality

City, StatePopulationAir Quality IndexNational Avg.
Goose Lake, IA275536%
Sabula, IA448536%
Lanark, IL1,542536%
Andover, IA113536%
Low Moor, IA249536%
Thomson, IL563536%

Cities with similar population

City, StatePopulationAir Quality IndexNational Avg.
Simpson, LA563435770%
White Earth, MN5633530%
Big Piney, WY5634020%
La Paz, IN563512%
Tivoli, TX5632746%
Thomson, IL563536%
Source: The Thomson, 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.