Dayton, IL Weather Forecast & Monthly Average Temperatures

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Current weather Weather poll Average temperature Did you know? City comparison Air quality / pollution Heat index Montly precipitation Best nearby cities

TEMPERATURE	41
HUMIDITY	63
PRESSURE	30.07
WIND COND.	190 13.9

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Dayton 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	26°F	3.3"
February	19°F	35°F	26°F	3.0"
March	32°F	51°F	40°F	4.3"
April	42°F	64°F	52°F	7.2"
May	53°F	75°F	63°F	8.0"
June	62°F	83°F	72°F	7.5"
July	66°F	85°F	75°F	7.1"
August	64°F	83°F	73°F	8.2"
September	56°F	78°F	66°F	6.3"
October	45°F	65°F	54°F	6.6"
November	34°F	51°F	42°F	4.3"
December	23°F	37°F	30°F	3.5"

Did you know?

The highest monthly average temperature in Dayton for July is 75 degrees.
The lowest monthly average temperature in Dayton for January is 26 degrees.
The most monthly precipitation in Dayton occurs in August with 8.2 inches.
The air quality index in Dayton is 98% better than the national average.
The pollution index in Dayton is 63% better than the national average.

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Compare Dayton, IL Weather To Other Cities

Dayton 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	Dayton	Illinois	National
Air quality index	1	41	50
Pollution index	1,874,490	3,347,295	5,066,862

Dayton air quality information

Measurement	Total
Days measured	351
Days with good air quality	351
Days with moderate air quality
Days w/ poor A.Q. for sensitive groups
Days with unhealthy air quality

Dayton air quality information

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

Average monthly Dayton temperature with heat index

Dayton monthly precipitation with daily maximum

Dayton monthly snow depth with daily maximum

Dayton monthly wind speed information

Nearby cities with good air quality

City, State	Population	Air Quality Index	National Avg.
Earlville, IL	1,672	1	98%
Leonore, IL	90	1	98%
Naplate, IL	441	1	98%
Ottawa, IL	18,707	1	98%
Troy Grove, IL	281	1	98%
Dayton, IL	520	1	98%

Cities with similar population

City, State	Population	Air Quality Index	National Avg.
Mount Calvary, WI	520	36	28%
Sidell, IL	520	36	28%
Burton, TX	520	41	18%
Michigantown, IN	520	52	4%
Nucla, CO	520	41	18%
Dayton, IL	520	1	98%

Source: The Dayton, 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.