Plainfield, IL Weather - Forecast & Monthly Averages

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Key findings

The highest monthly average temperature in Plainfield for July is 73.4 degrees
The lowest monthly average temperature in Plainfield for January is 24.4 degrees
The most monthly precipitation in Plainfield occurs in August with 7.7 inches
The air quality index in Plainfield is 11% worse than the national average
The pollution index in Plainfield is 31% better than the national average

Compare Plainfield, IL Weather

Plainfield 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	17°F	32°F	24°F	3.1"
February	18°F	34°F	26°F	3.0"
March	31°F	49°F	39°F	5.2"
April	40°F	62°F	50°F	4.8"
May	51°F	73°F	61°F	5.9"
June	60°F	82°F	70°F	6.7"
July	64°F	84°F	73°F	4.1"
August	62°F	82°F	71°F	7.7"
September	55°F	76°F	65°F	3.2"
October	44°F	64°F	53°F	7.3"
November	33°F	50°F	41°F	3.9"
December	22°F	36°F	29°F	3.7"

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Plainfield 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	Plainfield	Illinois	National
Air quality index	55	41	50
Pollution index	1,874,490	3,148,694	2,726,193

Plainfield 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

Plainfield air quality information

Pollutant	Total
Arsenic	0.002%
Benzene	0.030%
Carbon Tetrachloride	0.010%
Lead	0.010%
Mercury	0.010%

Average monthly Plainfield temperature with heat index

Plainfield monthly precipitation with daily maximum

Plainfield monthly snow depth with daily maximum

Plainfield monthly wind speed information

Nearby cities with good air quality

City	Population	Air Quality Index	National Avg.
Montgomery, IL	19,055	0	100.0%
Prestbury, IL	1,780	0	100.0%
Plano, IL	11,929	0	100.0%
Shorewood, IL	16,539	0	100.0%
Channahon, IL	12,329	0	100.0%
Plainfield, IL	41,881	55	10.0%

Cities with similar population

City	Population	Air Quality Index	National Avg.
Morgan Hill, CA	41,839	43	14.0%
Rohnert Park, CA	41,928	34	32.0%
Urbana, IL	41,941	42	16.0%
Burleson, TX	41,962	33	34.0%
Timmins, ON	41,763	n/a
Plainfield, IL	41,881	55	10.0%

Source: The Plainfield, 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.