Clarendon Hills, IL Weather - Forecast & Monthly Averages

TEMPERATURE	38
HUMIDITY	82
PRESSURE	101190
WIND COND.	330 9.4

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Weather Quick Facts

The highest monthly average temperature in Clarendon Hills for July is 76.3 degrees
The lowest monthly average temperature in Clarendon Hills for January is 26.2 degrees
The most monthly precipitation in Clarendon Hills occurs in August with 5.1 inches
The air quality index in Clarendon Hills is 31% worse than the national average
The pollution index in Clarendon Hills is 450% worse than the national average

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Clarendon Hills 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	20°F	34°F	26°F	1.9"
February	21°F	36°F	28°F	1.6"
March	33°F	49°F	40°F	2.4"
April	42°F	62°F	51°F	3.6"
May	52°F	73°F	61°F	4.3"
June	63°F	82°F	72°F	4.6"
July	68°F	86°F	76°F	3.5"
August	67°F	83°F	75°F	5.1"
September	60°F	77°F	68°F	2.8"
October	48°F	65°F	55°F	3.9"
November	36°F	51°F	43°F	2.2"
December	25°F	37°F	31°F	2.2"

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

Clarendon Hills 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 Clarendon Hills temperature with heat index

Clarendon Hills monthly precipitation with daily maximum

Clarendon Hills monthly snow depth with daily maximum

Clarendon Hills monthly wind speed information

Nearby cities with good air quality

City	Population	Air Quality Index	National Avg.
Woodridge, IL	33,443	55	10.0%
Warrenville, IL	13,137	55	10.0%
Stone Park, IL	4,842	55	10.0%
Franklin Park, IL	17,779	55	10.0%
McCook, IL	317	55	10.0%
Clarendon Hills, IL	8,834	55	10.0%

Cities with similar population

City	Population	Air Quality Index	National Avg.
Glencoe, IL	8,836	55	10.0%
Frankfort Square, IL	8,831	55	10.0%
Monmouth, IL	8,837	32	36.0%
Riverdale, UT	8,826	45	10.0%
Whitestown, IN	8,842	54	8.0%
Clarendon Hills, IL	8,834	55	10.0%

Source: The Clarendon Hills, 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.