TODAY JUN01
TEMPERATURE60
HUMIDITY51
PRESSURE30.25
WIND COND.130 9.2
  • 7764Mon
  • 9272Tue
  • 8964Wed30%50%
  • 8666Thu
  • 8968Fri
daynightWeather update from Morris Muni-James R Washburn Field Airport at
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Diamond 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°F33°F25°F3.9"
February18°F35°F26°F2.3"
March31°F50°F39°F4.3"
April40°F63°F50°F8.4"
May51°F74°F62°F6.0"
June61°F82°F71°F5.7"
July63°F84°F73°F9.0"
August62°F82°F71°F5.4"
September54°F77°F65°F3.7"
October44°F65°F53°F7.1"
November33°F51°F41°F4.0"
December22°F37°F29°F3.0"

Did you know?

  • The highest monthly average temperature in Diamond for July is 73 degrees.
  • The lowest monthly average temperature in Diamond for January is 25 degrees.
  • The most monthly precipitation in Diamond occurs in July with 9 inches.
  • The air quality index in Diamond is 98% better than the national average.
  • The pollution index in Diamond is 66% better than the national average.

Compare Diamond, IL Weather To Other Cities

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      Diamond 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.
      IndexDiamondIllinoisNational
      Air quality index14150
      Pollution index1,736,9303,347,2955,066,862

      Diamond 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

      Diamond air quality information

      PollutantTotal
      Arsenic0.004%
      Benzene0.040%
      Carbon Tetrachloride0.000%
      Lead0.001%
      Mercury0.001%

      Average monthly Diamond temperature with heat index

      Diamond monthly precipitation with daily maximum

      Diamond monthly snow depth with daily maximum

      Diamond monthly wind speed information

      Nearby cities with good air quality

      City, StatePopulationAir Quality IndexNational Avg.
      Bonfield, IL337198%
      Channahon, IL12,329198%
      Elwood, IL2,144198%
      Lakewood Shores, IL1,352198%
      Minooka, IL11,786198%
      Diamond, IL2,733198%

      Cities with similar population

      City, StatePopulationAir Quality IndexNational Avg.
      Crest, CA2,7336122%
      Plainsboro Center, NJ2,7334020%
      Strasburg, CO2,734548%
      Norton Center, MA2,7324510%
      Folly Beach, SC2,7323628%
      Diamond, IL2,733198%
      Source: The Diamond, 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.