Glen Carbon, IL Weather - Forecast & Monthly Averages

TEMPERATURE	41
HUMIDITY
PRESSURE
WIND COND.	300 16.6

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Weather Quick Facts

The highest monthly average temperature in Glen Carbon for July is 76.5 degrees
The lowest monthly average temperature in Glen Carbon for January is 31.2 degrees
The most monthly precipitation in Glen Carbon occurs in July with 7.3 inches
The air quality index in Glen Carbon is 28% worse than the national average
The pollution index in Glen Carbon is 122% worse than the national average

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Glen Carbon 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	41°F	31°F	3.4"
February	25°F	43°F	33°F	3.7"
March	38°F	57°F	46°F	3.1"
April	47°F	68°F	56°F	6.6"
May	56°F	76°F	65°F	6.1"
June	65°F	85°F	75°F	3.5"
July	67°F	87°F	77°F	7.3"
August	66°F	86°F	75°F	6.8"
September	58°F	80°F	68°F	4.4"
October	47°F	68°F	57°F	6.7"
November	36°F	56°F	45°F	4.9"
December	28°F	43°F	35°F	6.3"

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Glen Carbon 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	Glen Carbon	Illinois	National
Air quality index	54	41	42
Pollution index	6,055,640	3,148,694	2,726,193

Glen Carbon 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	0.010%
Benzene	0.070%
Carbon Tetrachloride	0.040%
Lead	0.100%
Mercury	0.230%

Average monthly Glen Carbon temperature with heat index

Glen Carbon monthly precipitation with daily maximum

Glen Carbon monthly snow depth with daily maximum

Glen Carbon monthly wind speed information

Nearby cities with good air quality

City	Population	Air Quality Index	National Avg.
Holiday Shores, IL	3,080	54	8.0%
Bethalto, IL	9,258	54	8.0%
Hartford, IL	1,769	54	8.0%
Rosewood Heights, IL	3,990	54	8.0%
Troy, IL	10,278	54	8.0%
Glen Carbon, IL	12,468	54	8.0%

Cities with similar population

City	Population	Air Quality Index	National Avg.
Marysville, CA	12,467	44	12.0%
Choctaw, OK	12,467	48	4.0%
Lakeland South, WA	12,467	45	10.0%
Bonita, CA	12,470	64	28.0%
Boone, IA	12,470	37	26.0%
Glen Carbon, IL	12,468	54	8.0%

Source: The Glen Carbon, 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.