TODAY JUN01
TEMPERATURE75
HUMIDITY48
PRESSURE30
WIND COND.
  • 9070Tue
  • 8561Wed40%60%
  • 8665Thu20%30%
  • 8562Fri
  • 8159Sat
daynightWeather update from Aurora Municipal Airport at
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Leland 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
January15°F32°F23°F1.5"
February16°F34°F24°F1.4"
March29°F49°F38°F2.3"
April39°F62°F50°F3.9"
May49°F73°F61°F4.3"
June59°F82°F70°F4.5"
July62°F84°F73°F4.3"
August60°F82°F71°F4.3"
September53°F77°F64°F2.9"
October42°F64°F52°F3.6"
November30°F50°F40°F2.1"
December20°F36°F28°F2.2"

Did you know?

  • The highest monthly average temperature in Leland for July is 73 degrees.
  • The lowest monthly average temperature in Leland for January is 23 degrees.
  • The most monthly precipitation in Leland occurs in June with 4.5 inches.
  • The air quality index in Leland is 98% better than the national average.
  • The pollution index in Leland is 63% better than the national average.

Compare Leland, IL Weather To Other Cities

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      Leland 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.
      IndexLelandIllinoisNational
      Air quality index14150
      Pollution index1,874,4903,347,2955,066,862

      Leland air quality information

      MeasurementTotal
      Days measured351
      Days with good air quality351
      Days with moderate air quality
      Days w/ poor A.Q. for sensitive groups
      Days with unhealthy air quality

      Leland air quality information

      PollutantTotal
      Arsenic0.002%
      Benzene0.030%
      Carbon Tetrachloride0.010%
      Lead0.010%
      Mercury0.010%

      Average monthly Leland temperature with heat index

      Leland monthly precipitation with daily maximum

      Leland monthly snow depth with daily maximum

      Leland monthly wind speed information

      Nearby cities with good air quality

      City, StatePopulationAir Quality IndexNational Avg.
      Earlville, IL1,672198%
      Millbrook, IL341198%
      Plano, IL11,929198%
      Somonauk, IL2,106198%
      Hinckley, IL2,053198%
      Leland, IL844198%

      Cities with similar population

      City, StatePopulationAir Quality IndexNational Avg.
      Baroda, MI8443824%
      Screven, GA8443138%
      Willow Valley, AZ8441864%
      Talkeetna, AK8442942%
      Adair, OK8443726%
      Leland, IL844198%
      Source: The Leland, 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.