Clayton, IL Weather Forecast & Monthly Average Temperatures

TEMPERATURE	74
HUMIDITY	76
PRESSURE	29.9
WIND COND.

Clayton Average Weather

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	-10°F	68°F	29°F	2.0"
February	-8°F	69°F	30°F	1.9"
March	10°F	78°F	43°F	2.6"
April	19°F	86°F	54°F	3.7"
May	31°F	92°F	63°F	2.8"
June	50°F	96°F	73°F	5.1"
July	55°F	104°F	75°F	2.6"
August	49°F	103°F	75°F	4.0"
September	37°F	94°F	67°F	3.2"
October	25°F	93°F	54°F	3.3"
November	12°F	75°F	44°F	1.8"
December	-2°F	65°F	30°F	2.2"

Did you know?

The highest monthly average temperature in Clayton for July is 75 degrees.
The lowest monthly average temperature in Clayton for January is 29 degrees.
The most monthly precipitation in Clayton occurs in June with 5.1 inches.
The air quality index in Clayton is 31% better than the national average.
The pollution index in Clayton is 95% better than the national average.

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Clayton 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	Clayton	Illinois	National
Air quality index	34	41	50
Pollution index	222,633	3,347,295	5,066,862

Clayton air quality information

Measurement	Total
Days measured	304
Days with good air quality	296
Days with moderate air quality	8
Days w/ poor A.Q. for sensitive groups
Days with unhealthy air quality

Clayton air quality information

Pollutant	Total
Arsenic	0.003%
Benzene	0.010%
Carbon Tetrachloride	0.000%
Lead	0.002%
Mercury	0.000%

Average monthly Clayton temperature with heat index

Clayton monthly precipitation with daily maximum

Clayton monthly snow depth with daily maximum

Clayton monthly wind speed information

Nearby cities with good air quality

City, State	Population	Air Quality Index	National Avg.
Golden, IL	643	34	32%
Mound Station, IL	158	34	32%
Camden, IL	100	34	32%
La Prairie, IL	68	34	32%
Mount Sterling, IL	2,184	34	32%
Clayton, IL	607	34	32%

Cities with similar population

City, State	Population	Air Quality Index	National Avg.
Keota, OK	607	35	30%
Poplar, WI	607	37	26%
Walsh, CO	607	6	88%
Rawlings, MD	607	32	36%
South Williamson, KY	607	38	24%
Clayton, IL	607	34	32%

Source: The Clayton, 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.