Glendale Heights, IL Weather - Forecast & Monthly Averages

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TEMPERATURE	48
HUMIDITY	57
PRESSURE	101591.66
WIND COND.	180 14.8

Weather Quick Facts

The highest monthly average temperature in Glendale Heights for July is 73.7 degrees
The lowest monthly average temperature in Glendale Heights for January is 23.8 degrees
The most monthly precipitation in Glendale Heights occurs in May with 4.5 inches
The air quality index in Glendale Heights is 31% worse than the national average
The pollution index in Glendale Heights is 450% worse than the national average

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Glendale Heights 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	16°F	32°F	24°F	1.4"
February	17°F	34°F	25°F	1.2"
March	30°F	49°F	38°F	2.2"
April	39°F	62°F	50°F	3.8"
May	49°F	73°F	60°F	4.5"
June	59°F	82°F	70°F	4.4"
July	63°F	85°F	74°F	4.1"
August	62°F	83°F	72°F	3.8"
September	54°F	77°F	65°F	3.4"
October	43°F	64°F	53°F	3.1"
November	32°F	50°F	40°F	1.9"
December	21°F	36°F	29°F	2.1"

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Glendale Heights 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	Glendale Heights	Illinois	National
Air quality index	55	41	42
Pollution index	14,981,300	3,148,694	2,726,193

Glendale Heights air quality

Measurement	Total
Days measured	365
Days with good air quality	121
Days with moderate air quality	227
Days w/ poor A.Q. for sensitive groups	16
Days with unhealthy air quality	1

Air quality details

Pollutant	Total
Arsenic	0.010%
Benzene	0.140%
Carbon Tetrachloride	0.030%
Lead	0.020%
Mercury	0.010%

Average monthly Glendale Heights temperature with heat index

Glendale Heights monthly precipitation with daily maximum

Glendale Heights monthly snow depth with daily maximum

Glendale Heights monthly wind speed information

Nearby cities with good air quality

City	Population	Air Quality Index	National Avg.
Montgomery, IL	20,189	0	100.0%
Naperville, IL	151,582	55	10.0%
Winfield, IL	10,018	55	10.0%
Willow Springs, IL	5,786	55	10.0%
Hodgkins, IL	1,817	55	10.0%
Glendale Heights, IL	34,961	55	10.0%

Cities with similar population

City	Population	Air Quality Index	National Avg.
Cottonwood Heights, UT	34,939	51	2.0%
Cookeville, TN	34,916	25	50.0%
San Luis, AZ	34,910	45	10.0%
Ken Caryl, CO	35,038	58	16.0%
Dana Point, CA	34,877	89	78.0%
Glendale Heights, IL	34,961	55	10.0%

Source: The Glendale Heights, 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.