Illiopolis, IL Weather - Forecast & Monthly Averages

TEMPERATURE	38
HUMIDITY	85
PRESSURE	101250
WIND COND.	300 33.5

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Weather Quick Facts

The highest monthly average temperature in Illiopolis for August is 78.1 degrees
The lowest monthly average temperature in Illiopolis for February is 29.4 degrees
The most monthly precipitation in Illiopolis occurs in June with 8.1 inches
The air quality index in Illiopolis is 5% worse than the national average
The pollution index in Illiopolis is 88% worse than the national average

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Illiopolis Average Temperature

In the event that the weather data was unavailable for this city, estimates based upon nearby cities were used.
Month	Temp. _(min)	Temp. _(max)	Temp. _(avg)	Precipitation
January	24°F	38°F	31°F	6.8"
February	23°F	37°F	29°F	3.4"
March	35°F	56°F	45°F	3.0"
April	43°F	65°F	54°F	4.2"
May	54°F	78°F	66°F	3.1"
June	64°F	86°F	75°F	8.1"
July	65°F	86°F	76°F	4.0"
August	68°F	89°F	78°F	3.9"
September	59°F	85°F	72°F	7.7"
October	49°F	71°F	60°F	7.1"
November	37°F	56°F	45°F	6.1"
December	24°F	37°F	30°F	2.5"

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Illiopolis 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.
Index	Illiopolis	Illinois	National
Air quality index	44	41	42
Pollution index	5,136,080	3,148,694	2,726,193

Illiopolis air quality

Measurement	Total
Days measured	365
Days with good air quality	255
Days with moderate air quality	110
Days w/ poor A.Q. for sensitive groups	0
Days with unhealthy air quality	0

Air quality details

Pollutant	Total
Arsenic	0.010%
Benzene	0.090%
Carbon Tetrachloride	0.010%
Lead	0.390%
Mercury	0.020%

Average monthly Illiopolis temperature with heat index

Illiopolis monthly precipitation with daily maximum

Illiopolis monthly snow depth with daily maximum

Illiopolis monthly wind speed information

Nearby cities with good air quality

City	Population	Air Quality Index	National Avg.
Cornland, IL	71	40	20.0%
Buffalo, IL	345	40	20.0%
Edinburg, IL	1,088	40	20.0%
Dawson, IL	705	40	20.0%
Elkhart, IL	459	40	20.0%
Illiopolis, IL	767	44	12.0%

Cities with similar population

City	Population	Air Quality Index	National Avg.
Ravenna, KY	767	33	34.0%
Midway, LA	767	30	40.0%
Kimball, MN	767	32	36.0%
Middleville, NY	767	27	46.0%
Oak City, UT	767	46	8.0%
Illiopolis, IL	767	44	12.0%

Source: The Illiopolis, 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.