Naples, IL Weather - Forecast & Monthly Averages

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Weather Quick Facts

The highest monthly average temperature in Naples for July is 76.4 degrees
The lowest monthly average temperature in Naples for January is 28.9 degrees
The most monthly precipitation in Naples occurs in June with 10.4 inches
The air quality index in Naples is 3% better than the national average
The pollution index in Naples is 92% better than the national average

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Naples 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	39°F	29°F	3.5"
February	23°F	41°F	31°F	3.2"
March	36°F	56°F	44°F	3.6"
April	46°F	68°F	56°F	7.4"
May	56°F	76°F	65°F	7.6"
June	64°F	84°F	74°F	10.4"
July	67°F	87°F	76°F	8.6"
August	65°F	87°F	75°F	6.1"
September	58°F	81°F	68°F	8.5"
October	46°F	68°F	56°F	5.6"
November	36°F	55°F	45°F	5.5"
December	27°F	42°F	33°F	6.1"

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Naples 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	Naples	Illinois	National
Air quality index	41	41	42
Pollution index	222,633	3,148,694	2,726,193

Naples air quality

Measurement	Total
Days measured	241
Days with good air quality	208
Days with moderate air quality	33
Days w/ poor A.Q. for sensitive groups	0
Days with unhealthy air quality	0

Air quality details

Pollutant	Total
Arsenic	0.003%
Benzene	0.010%
Carbon Tetrachloride	0.000%
Lead	0.002%
Mercury	0.000%

Average monthly Naples temperature with heat index

Naples monthly precipitation with daily maximum

Naples monthly snow depth with daily maximum

Naples monthly wind speed information

Nearby cities with good air quality

City	Population	Air Quality Index	National Avg.
Exeter, IL	72	40	20.0%
Alsey, IL	175	40	20.0%
Chapin, IL	536	40	20.0%
Glasgow, IL	93	40	20.0%
Concord, IL	170	40	20.0%
Naples, IL	143	41	18.0%

Cities with similar population

City	Population	Air Quality Index	National Avg.
Atmautluak, AK	143	31	38.0%
Gu-Win, AL	143	35	30.0%
Sidney, AR	143	36	28.0%
Christopher Creek, AZ	143	60	20.0%
Kennedy Meadows, CA	143	67	34.0%
Naples, IL	143	41	18.0%

Source: The Naples, 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.