Sparta, IL Weather - Forecast & Monthly Averages

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Weather Quick Facts

The highest monthly average temperature in Sparta for July is 78 degrees
The lowest monthly average temperature in Sparta for January is 32.9 degrees
The most monthly precipitation in Sparta occurs in August with 10.7 inches
The air quality index in Sparta is 28% worse than the national average
The pollution index in Sparta is 55% better than the national average

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Sparta 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	25°F	42°F	33°F	4.6"
February	27°F	45°F	35°F	2.4"
March	39°F	58°F	48°F	3.7"
April	48°F	69°F	58°F	6.6"
May	57°F	77°F	66°F	10.0"
June	66°F	86°F	76°F	8.8"
July	69°F	88°F	78°F	6.8"
August	67°F	87°F	76°F	10.7"
September	59°F	81°F	69°F	7.4"
October	48°F	70°F	58°F	9.0"
November	38°F	57°F	47°F	6.5"
December	30°F	45°F	37°F	7.7"

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Sparta 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	Sparta	Illinois	National
Air quality index	54	41	42
Pollution index	1,232,920	3,148,694	2,726,193

Sparta air quality information

Measurement	Total
Days measured	365
Days with good air quality	134
Days with moderate air quality	221
Days w/ poor A.Q. for sensitive groups	8
Days with unhealthy air quality	2

Sparta air quality information

Pollutant	Total
Arsenic	0.170%
Benzene	0.030%
Carbon Tetrachloride	0.000%
Lead	0.010%
Mercury	0.290%

Average monthly Sparta temperature with heat index

Sparta monthly precipitation with daily maximum

Sparta monthly snow depth with daily maximum

Sparta monthly wind speed information

Nearby cities with good air quality

City	Population	Air Quality Index	National Avg.
Campbell Hill, IL	292	43	14.0%
Percy, IL	1,110	43	14.0%
Tilden, IL	961	43	14.0%
Steeleville, IL	1,870	43	14.0%
Oakdale, IL	291	43	14.0%
Sparta, IL	4,302	54	8.0%

Cities with similar population

City	Population	Air Quality Index	National Avg.
Golden Triangle, NJ	4,302	51	2.0%
Montréal-Est, QC	4,302	n/a
Madeira Beach, FL	4,303	43	14.0%
Grayson, GA	4,303	52	4.0%
Mather, CA	4,304	52	4.0%
Sparta, IL	4,302	54	8.0%

Source: The Sparta, 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.