TODAY JUN21
TEMPERATURE70
HUMIDITY93
PRESSURE29.8
WIND COND.220 5.8
  • 7965Thu60%60%
  • 7762Fri60%60%
  • 7964Sat
  • 8263Sun
  • 8366Mon
daynightWeather update from Decatur Airport at

Oreana Average Weather

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
January-1°F68°F33°F2.4"
February-2°F65°F30°F1.7"
March14°F82°F43°F2.0"
April21°F88°F54°F2.4"
May29°F93°F64°F2.0"
June48°F94°F75°F3.4"
July52°F98°F77°F3.1"
August46°F99°F76°F2.1"
September39°F96°F69°F3.5"
October28°F93°F57°F2.5"
November16°F76°F45°F1.7"
December1°F64°F33°F1.4"

Did you know?

  • The highest monthly average temperature in Oreana for July is 77 degrees.
  • The lowest monthly average temperature in Oreana for February is 30 degrees.
  • The most monthly precipitation in Oreana occurs in September with 3.5 inches.
  • The air quality index in Oreana is 21% better than the national average.
  • The pollution index in Oreana is 86% better than the national average.

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Compare Oreana, IL Weather To Other Cities

Oreana 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.
IndexOreanaIllinoisNational
Air quality index394150
Pollution index703,2183,347,2955,066,862

Oreana air quality information

MeasurementTotal
Days measured365
Days with good air quality293
Days with moderate air quality72
Days w/ poor A.Q. for sensitive groups
Days with unhealthy air quality

Oreana air quality information

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

Average monthly Oreana temperature with heat index

Oreana monthly precipitation with daily maximum

Oreana monthly snow depth with daily maximum

Oreana monthly wind speed information

Nearby cities with good air quality

City, StatePopulationAir Quality IndexNational Avg.
De Land, IL4613628%
Cisco, IL2403922%
Forsyth, IL3,4213922%
LaPlace, IL1613922%
Warrensburg, IL1,3653922%
Oreana, IL8483922%

Cities with similar population

City, StatePopulationAir Quality IndexNational Avg.
Gila Crossing, AZ8487448%
Fair Bluff, NC8483040%
Marathon, NY8483236%
North Irwin, PA8485612%
West Pittsburg, PA8483138%
Oreana, IL8483922%
Source: The Oreana, 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.