TODAY JUN01
TEMPERATURE58
HUMIDITY60
PRESSURE30.24
WIND COND.140 8.1
  • 7866Mon20%
  • 9270Tue20%
  • 8662Wed40%40%
  • 8565Thu
  • 8765Fri
daynightWeather update from Rockford, Greater Rockford Airport at
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Byron 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
January14°F32°F23°F1.7"
February15°F35°F25°F1.6"
March27°F50°F38°F2.7"
April37°F64°F50°F4.3"
May47°F75°F61°F3.4"
June58°F84°F71°F5.1"
July62°F86°F74°F4.9"
August61°F84°F72°F5.3"
September53°F79°F65°F2.8"
October42°F66°F53°F2.9"
November30°F51°F40°F2.4"
December18°F36°F27°F2.5"

Did you know?

  • The highest monthly average temperature in Byron for July is 74 degrees.
  • The lowest monthly average temperature in Byron for January is 23 degrees.
  • The most monthly precipitation in Byron occurs in August with 5.3 inches.
  • The air quality index in Byron is 38% better than the national average.
  • The pollution index in Byron is 66% better than the national average.

Compare Byron, IL Weather To Other Cities

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      Byron 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.
      IndexByronIllinoisNational
      Air quality index314150
      Pollution index1,721,0903,347,2955,066,862

      Byron air quality information

      MeasurementTotal
      Days measured365
      Days with good air quality339
      Days with moderate air quality26
      Days w/ poor A.Q. for sensitive groups
      Days with unhealthy air quality

      Byron air quality information

      PollutantTotal
      Arsenic0.001%
      Benzene0.020%
      Carbon Tetrachloride0.001%
      Lead0.002%
      Mercury0.000%

      Average monthly Byron temperature with heat index

      Byron monthly precipitation with daily maximum

      Byron monthly snow depth with daily maximum

      Byron monthly wind speed information

      Nearby cities with good air quality

      City, StatePopulationAir Quality IndexNational Avg.
      Creston, IL7203138%
      Leaf River, IL6373138%
      Mount Morris, IL3,0083138%
      Ridott, IL1733138%
      Winnebago, IL3,0083138%
      Byron, IL3,6473138%

      Cities with similar population

      City, StatePopulationAir Quality IndexNational Avg.
      Muttontown, NY3,648536%
      Wadsworth, IL3,6463530%
      Hidden Meadows, CA3,6486122%
      Quartzsite, AZ3,6461864%
      Las Lomas, TX3,6463628%
      Byron, IL3,6473138%
      Source: The Byron, 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.