Rock City, IL Weather - Forecast & Monthly Averages

TEMPERATURE	30
HUMIDITY	81
PRESSURE	100850
WIND COND.	290 29.5

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Weather Quick Facts

The highest monthly average temperature in Rock City for July is 71.8 degrees
The lowest monthly average temperature in Rock City for January is 21.7 degrees
The most monthly precipitation in Rock City occurs in August with 7.3 inches
The air quality index in Rock City is equal to the national average
The pollution index in Rock City is 35% better than the national average

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Rock City 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	14°F	30°F	22°F	2.9"
February	15°F	31°F	23°F	2.3"
March	29°F	47°F	37°F	3.6"
April	38°F	61°F	48°F	5.4"
May	49°F	72°F	60°F	5.5"
June	58°F	80°F	69°F	6.3"
July	62°F	82°F	72°F	5.8"
August	60°F	81°F	70°F	7.3"
September	52°F	75°F	63°F	4.7"
October	42°F	62°F	51°F	5.8"
November	30°F	48°F	39°F	4.0"
December	19°F	33°F	26°F	3.4"

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Rock City 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	Rock City	Illinois	National
Air quality index	42	41	42
Pollution index	1,767,980	3,148,694	2,726,193

Rock City air quality

Measurement	Total
Days measured	341
Days with good air quality	240
Days with moderate air quality	100
Days w/ poor A.Q. for sensitive groups	1
Days with unhealthy air quality	0

Air quality details

Pollutant	Total
Arsenic	0.001%
Benzene	0.040%
Carbon Tetrachloride	0.010%
Lead	0.001%
Mercury	0.003%

Average monthly Rock City temperature with heat index

Rock City monthly precipitation with daily maximum

Rock City monthly snow depth with daily maximum

Rock City monthly wind speed information

Nearby cities with good air quality

City	Population	Air Quality Index	National Avg.
Brodhead, WI	3,211	38	24.0%
Juda, WI	322	38	24.0%
Orfordville, WI	1,450	38	24.0%
Monroe, WI	10,573	38	24.0%
Lake Summerset, IL	1,958	42	16.0%
Rock City, IL	354	42	16.0%

Cities with similar population

City	Population	Air Quality Index	National Avg.
Somerville, IN	354	45	10.0%
Everest, KS	354	43	14.0%
Greeley, KS	354	41	18.0%
Uniontown, KS	354	37	26.0%
Otterville, MO	354	38	24.0%
Rock City, IL	354	42	16.0%

Source: The Rock City, 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.