Bartlett, IL Weather - Forecast & Monthly Averages

TEMPERATURE	39
HUMIDITY	79
PRESSURE	100850
WIND COND.	340 29.5

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Weather Quick Facts

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

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

Bartlett 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 Bartlett temperature with heat index

Bartlett monthly precipitation with daily maximum

Bartlett monthly snow depth with daily maximum

Bartlett monthly wind speed information

Nearby cities with good air quality

City	Population	Air Quality Index	National Avg.
Prestbury, IL	1,978	0	100.0%
Lily Lake, IL	1,333	42	16.0%
Gilberts, IL	7,941	42	16.0%
Lake in the Hills, IL	28,617	42	16.0%
Huntley, IL	27,413	42	16.0%
Bartlett, IL	40,894	55	10.0%

Cities with similar population

City	Population	Air Quality Index	National Avg.
Bullhead City, AZ	40,808	13	74.0%
Wilkes-Barre, PA	40,805	38	24.0%
Buffalo Grove, IL	40,804	55	10.0%
Cedar Falls, IA	40,750	39	22.0%
Manassas, VA	41,038	47	6.0%
Bartlett, IL	40,894	55	10.0%

Source: The Bartlett, 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.