Petersburg, IL Weather Forecast & Monthly Average Temperatures

TEMPERATURE	12
HUMIDITY	92
PRESSURE	30.34
WIND COND.

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Petersburg 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	20°F	38°F	29°F	2.1"
February	22°F	41°F	31°F	1.9"
March	34°F	56°F	44°F	2.9"
April	44°F	68°F	56°F	4.3"
May	54°F	77°F	65°F	4.5"
June	64°F	86°F	74°F	5.5"
July	66°F	88°F	77°F	4.3"
August	64°F	86°F	75°F	3.2"
September	57°F	81°F	68°F	3.7"
October	46°F	69°F	56°F	3.7"
November	36°F	55°F	45°F	2.5"
December	26°F	41°F	33°F	2.8"

Did you know?

The highest monthly average temperature in Petersburg for July is 77 degrees.
The lowest monthly average temperature in Petersburg for January is 29 degrees.
The most monthly precipitation in Petersburg occurs in June with 5.5 inches.
The air quality index in Petersburg is 29% better than the national average.
The pollution index in Petersburg is 92% better than the national average.

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Petersburg 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	Petersburg	Illinois	National
Air quality index	35	41	50
Pollution index	400,905	3,347,295	5,066,862

Petersburg air quality information

Measurement	Total
Days measured	365
Days with good air quality	316
Days with moderate air quality	49
Days w/ poor A.Q. for sensitive groups
Days with unhealthy air quality

Petersburg air quality information

Pollutant	Total
Arsenic	0.000%
Benzene	0.020%
Carbon Tetrachloride	0.000%
Lead	0.000%
Mercury	0.000%

Average monthly Petersburg temperature with heat index

Petersburg monthly precipitation with daily maximum

Petersburg monthly snow depth with daily maximum

Petersburg monthly wind speed information

Nearby cities with good air quality

City, State	Population	Air Quality Index	National Avg.
Ashland, IL	1,264	35	30%
Grandview, IL	1,388	35	30%
Mason City, IL	2,272	35	30%
Pleasant Plains, IL	864	35	30%
Athens, IL	2,013	35	30%
Petersburg, IL	2,333	35	30%

Cities with similar population

City, State	Population	Air Quality Index	National Avg.
Ellinwood, KS	2,332	39	22%
Freeport, FL	2,332	31	38%
Selmont-West Selmont, AL	2,335	37	26%
Kure Beach, NC	2,335	39	22%
Inez, TX	2,335	27	46%
Petersburg, IL	2,333	35	30%

Source: The Petersburg, 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.