Sleepy Hollow, IL Weather - Forecast & Monthly Averages

TEMPERATURE	31
HUMIDITY	85
PRESSURE	102640
WIND COND.	20 5.4

New Real Estate Listings in Sleepy Hollow Area

For Sale For Rent

Search

Search Homes for Sale in Sleepy Hollow, IL

Weather Quick Facts

The highest monthly average temperature in Sleepy Hollow for July is 73.7 degrees
The lowest monthly average temperature in Sleepy Hollow for January is 23.8 degrees
The most monthly precipitation in Sleepy Hollow occurs in May with 4.5 inches
The air quality index in Sleepy Hollow is 31% worse than the national average
The pollution index in Sleepy Hollow is 80% better than the national average

Compare Sleepy Hollow, IL Weather

Write a review to give others more information about this area.

See all Sleepy Hollow poll results

Sleepy Hollow 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"

The best places in Illinois

Here are the best places to live in Illinois

These are the 10 most affordable cities in Illinois

Top 10 best public schools in Sleepy Hollow

See the best places to live in & around Sleepy Hollow

Sleepy Hollow 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	Sleepy Hollow	Illinois	National
Air quality index	55	41	42
Pollution index	543,516	3,148,694	2,726,193

Sleepy Hollow air quality information

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

Sleepy Hollow air quality information

Pollutant	Total
Arsenic	0.000%
Benzene	0.004%
Carbon Tetrachloride	0.000%
Lead	0.000%
Mercury	0.000%

Average monthly Sleepy Hollow temperature with heat index

Sleepy Hollow monthly precipitation with daily maximum

Sleepy Hollow monthly snow depth with daily maximum

Sleepy Hollow monthly wind speed information

Nearby cities with good air quality

City	Population	Air Quality Index	National Avg.
Oakwood Hills, IL	2,543	39	22.0%
Prairie Grove, IL	2,023	39	22.0%
Holiday Hills, IL	653	39	22.0%
Wauconda, IL	13,629	39	22.0%
Island Lake, IL	8,112	39	22.0%
Sleepy Hollow, IL	3,276	55	10.0%

Cities with similar population

City	Population	Air Quality Index	National Avg.
Lake California, CA	3,276	41	18.0%
Waller, TX	3,276	52	4.0%
Marysville, KS	3,275	32	36.0%
Fort Edward, NY	3,275	35	30.0%
Okemah, OK	3,275	36	28.0%
Sleepy Hollow, IL	3,276	55	10.0%

Source: The Sleepy Hollow, 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.