Prospect Heights, IL Weather - Forecast & Monthly Averages

TEMPERATURE	55
HUMIDITY	55
PRESSURE	102740
WIND COND.	250 5.4

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Weather Quick Facts

The highest monthly average temperature in Prospect Heights for August is 74.6 degrees
The lowest monthly average temperature in Prospect Heights for February is 25.4 degrees
The most monthly precipitation in Prospect Heights occurs in August with 12.8 inches
The air quality index in Prospect Heights is 31% worse than the national average
The pollution index in Prospect Heights is 39% worse than the national average

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Prospect 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	21°F	34°F	27°F	4.6"
February	20°F	32°F	25°F	1.8"
March	30°F	49°F	39°F	2.6"
April	39°F	60°F	49°F	4.5"
May	50°F	72°F	60°F	3.5"
June	63°F	84°F	73°F	3.8"
July	65°F	84°F	74°F	5.4"
August	67°F	83°F	75°F	12.8"
September	59°F	80°F	69°F	6.7"
October	49°F	66°F	57°F	1.7"
November	33°F	50°F	41°F	2.4"
December	19°F	32°F	26°F	1.7"

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Prospect 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	Prospect Heights	Illinois	National
Air quality index	55	41	42
Pollution index	3,795,410	3,148,694	2,726,193

Prospect 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	0.030%
Benzene	0.050%
Carbon Tetrachloride	0.010%
Lead	0.003%
Mercury	0.310%

Average monthly Prospect Heights temperature with heat index

Prospect Heights monthly precipitation with daily maximum

Prospect Heights monthly snow depth with daily maximum

Prospect Heights monthly wind speed information

Nearby cities with good air quality

City	Population	Air Quality Index	National Avg.
North Chicago, IL	29,967	39	22.0%
Mundelein, IL	31,574	39	22.0%
Green Oaks, IL	3,882	39	22.0%
Island Lake, IL	8,112	39	22.0%
Knollwood, IL	1,684	39	22.0%
Prospect Heights, IL	15,986	55	10.0%

Cities with similar population

City	Population	Air Quality Index	National Avg.
Summerside, PE	15,987	n/a
Floral Park, NY	15,979	51	2.0%
Rossville, MD	15,993	46	8.0%
White Center, WA	15,995	45	10.0%
Cherryland, CA	15,976	43	14.0%
Prospect Heights, IL	15,986	55	10.0%

Source: The Prospect 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.