Fayetteville, IL Weather - Forecast & Monthly Averages

TEMPERATURE	45
HUMIDITY	45
PRESSURE	101520
WIND COND.	290 25.9

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Weather Quick Facts

The highest monthly average temperature in Fayetteville for August is 80 degrees
The lowest monthly average temperature in Fayetteville for December is 33.3 degrees
The most monthly precipitation in Fayetteville occurs in September with 16.1 inches
The air quality index in Fayetteville is 28% worse than the national average
The pollution index in Fayetteville is 55% better than the national average

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Fayetteville 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	28°F	43°F	34°F	9.8"
February	26°F	45°F	34°F	4.7"
March	38°F	60°F	48°F	2.9"
April	45°F	68°F	56°F	5.6"
May	56°F	79°F	67°F	3.7"
June	65°F	88°F	76°F	7.6"
July	67°F	88°F	77°F	12.3"
August	70°F	93°F	80°F	7.2"
September	61°F	85°F	72°F	16.1"
October	49°F	72°F	59°F	7.5"
November	38°F	59°F	47°F	11.9"
December	27°F	42°F	33°F	2.9"

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Fayetteville 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	Fayetteville	Illinois	National
Air quality index	54	41	42
Pollution index	1,232,920	3,148,694	2,726,193

Fayetteville air quality

Measurement	Total
Days measured	365
Days with good air quality	134
Days with moderate air quality	221
Days w/ poor A.Q. for sensitive groups	8
Days with unhealthy air quality	2

Air quality details

Pollutant	Total
Arsenic	0.170%
Benzene	0.030%
Carbon Tetrachloride	0.000%
Lead	0.010%
Mercury	0.290%

Average monthly Fayetteville temperature with heat index

Fayetteville monthly precipitation with daily maximum

Fayetteville monthly snow depth with daily maximum

Fayetteville monthly wind speed information

Nearby cities with good air quality

City	Population	Air Quality Index	National Avg.
Germantown, IL	1,279	43	14.0%
Coulterville, IL	881	43	14.0%
Tilden, IL	961	43	14.0%
Okawville, IL	1,469	43	14.0%
Albers, IL	1,379	54	8.0%
Fayetteville, IL	438	54	8.0%

Cities with similar population

City	Population	Air Quality Index	National Avg.
Calion, AR	438	35	30.0%
Shaver Lake, CA	438	60	20.0%
Lake City, CO	438	44	12.0%
Moreland, GA	438	52	4.0%
Alleman, IA	438	37	26.0%
Fayetteville, IL	438	54	8.0%

Source: The Fayetteville, 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.