TODAY SEP20
TEMPERATURE64
HUMIDITY98
PRESSURE29.93
WIND COND.
  • 9273Thu20%
  • 7751Fri20%
  • 7048Sat
  • 7452Sun
  • 7759Mon
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 97% better than the national average.
  • The pollution index in Diamond is 65% better than the national average.

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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%
Honeoye Falls, NY2,7343628%
Folly Beach, SC2,7323628%
Norton Center, MA2,7324510%
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.