TODAY MAR02
TEMPERATURE28
HUMIDITY57
PRESSURE30.41
WIND COND.
  • 4531Tue
  • 4928Wed
  • 4626Thu
  • 4628Fri
  • 4828Sat
daynightWeather update from Joliet Regional Airport at

Key findings

  • The highest monthly average temperature in Rockdale for July is 74 degrees
  • The lowest monthly average temperature in Rockdale for January is 25 degrees
  • The most monthly precipitation in Rockdale occurs in August with 6.8 inches
  • The air quality index in Rockdale is 11% worse than the national average
  • The pollution index in Rockdale is 69% better than the national average

Compare Rockdale, IL Weather

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      Rockdale 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
      January18°F34°F25°F2.5"
      February19°F36°F27°F2.8"
      March31°F50°F39°F4.5"
      April41°F63°F51°F4.9"
      May50°F73°F61°F4.7"
      June60°F83°F71°F5.4"
      July64°F85°F74°F5.7"
      August62°F83°F72°F6.8"
      September55°F77°F65°F5.4"
      October44°F64°F53°F5.7"
      November33°F51°F41°F4.9"
      December23°F37°F30°F3.7"

      Rockdale 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.
      IndexRockdaleIllinoisNational
      Air quality index554150
      Pollution index1,558,0703,347,2955,066,862

      Rockdale air quality information

      MeasurementTotal
      Days measured365
      Days with good air quality121
      Days with moderate air quality227
      Days w/ poor A.Q. for sensitive groups16
      Days with unhealthy air quality1

      Rockdale air quality information

      PollutantTotal
      Arsenic0.010%
      Benzene0.010%
      Carbon Tetrachloride0.070%
      Lead0.090%
      Mercury0.010%

      Average monthly Rockdale temperature with heat index

      Rockdale monthly precipitation with daily maximum

      Rockdale monthly snow depth with daily maximum

      Rockdale monthly wind speed information

      Nearby cities with good air quality

      City, StatePopulationAir Quality IndexNational Avg.
      Carbon Hill, IL3800100%
      Oswego, IL33,2450100%
      Channahon, IL12,3290100%
      Elwood, IL2,1440100%
      Wilmington village, IL1440100%
      Rockdale, IL2,1515510%

      Cities with similar population

      City, StatePopulationAir Quality IndexNational Avg.
      Minonk, IL2,1514412%
      Conway, PA2,151688%
      Columbia City, OR2,1511864%
      Lawai, HI2,1521374%
      Whitney, TX2,1523824%
      Rockdale, IL2,1515510%
      Source: The Rockdale, 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.