Manhattan, IL Weather - Forecast & Monthly Averages

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TEMPERATURE
HUMIDITY
PRESSURE
WIND COND.

Weather Quick Facts

The highest monthly average temperature in Manhattan for July is 74.2 degrees
The lowest monthly average temperature in Manhattan for January is 25.3 degrees
The most monthly precipitation in Manhattan occurs in August with 6.8 inches
The air quality index in Manhattan is 31% worse than the national average
The pollution index in Manhattan is 43% better than the national average

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Manhattan 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	18°F	34°F	25°F	2.5"
February	19°F	36°F	27°F	2.8"
March	31°F	50°F	39°F	4.5"
April	41°F	63°F	51°F	4.9"
May	50°F	73°F	61°F	4.7"
June	60°F	83°F	71°F	5.4"
July	64°F	85°F	74°F	5.7"
August	62°F	83°F	72°F	6.8"
September	55°F	77°F	65°F	5.4"
October	44°F	64°F	53°F	5.7"
November	33°F	51°F	41°F	4.9"
December	23°F	37°F	30°F	3.7"

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Manhattan 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	Manhattan	Illinois	National
Air quality index	55	41	42
Pollution index	1,558,070	3,148,694	2,726,193

Manhattan 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	0.010%
Carbon Tetrachloride	0.070%
Lead	0.090%
Mercury	0.010%

Average monthly Manhattan temperature with heat index

Manhattan monthly precipitation with daily maximum

Manhattan monthly snow depth with daily maximum

Manhattan monthly wind speed information

Nearby cities with good air quality

City	Population	Air Quality Index	National Avg.
Diamond, IL	2,786	0	100.0%
Wilmington village, IL	144	0	100.0%
Godley, IL	691	0	100.0%
Wilmington, IL	5,883	0	100.0%
Elwood, IL	2,524	0	100.0%
Manhattan, IL	8,218	55	10.0%

Cities with similar population

City	Population	Air Quality Index	National Avg.
Geneseo, NY	8,218	37	26.0%
Orono, MN	8,217	46	8.0%
Jefferson City, TN	8,220	44	12.0%
Temple Hills, MD	8,221	47	6.0%
Upper Saddle River, NJ	8,214	51	2.0%
Manhattan, IL	8,218	55	10.0%

Source: The Manhattan, 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.