St. Peter, IL Weather - Forecast & Monthly Averages

TEMPERATURE	61
HUMIDITY	77
PRESSURE	101020
WIND COND.	190 16.6

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Weather Quick Facts

The highest monthly average temperature in St. Peter for July is 77.6 degrees
The lowest monthly average temperature in St. Peter for January is 32.3 degrees
The most monthly precipitation in St. Peter occurs in September with 8.9 inches
The air quality index in St. Peter is 5% better than the national average
The pollution index in St. Peter is 43% better than the national average

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St. Peter 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	41°F	32°F	3.5"
February	27°F	44°F	34°F	2.0"
March	39°F	58°F	47°F	3.7"
April	48°F	69°F	58°F	7.8"
May	57°F	77°F	66°F	5.4"
June	66°F	86°F	76°F	8.3"
July	68°F	88°F	78°F	7.4"
August	66°F	87°F	76°F	7.2"
September	59°F	81°F	69°F	8.9"
October	48°F	70°F	58°F	5.6"
November	38°F	57°F	47°F	4.2"
December	30°F	45°F	37°F	4.9"

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St. Peter 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	St. Peter	Illinois	National
Air quality index	40	41	42
Pollution index	1,561,310	3,148,694	2,726,193

St. Peter air quality

Measurement	Total
Days measured	245
Days with good air quality	224
Days with moderate air quality	21
Days w/ poor A.Q. for sensitive groups	0
Days with unhealthy air quality	0

Air quality details

Pollutant	Total
Arsenic	0.001%
Benzene	0.040%
Carbon Tetrachloride	0.010%
Lead	0.002%
Mercury	0.002%

Average monthly St. Peter temperature with heat index

St. Peter monthly precipitation with daily maximum

St. Peter monthly snow depth with daily maximum

St. Peter monthly wind speed information

Nearby cities with good air quality

City	Population	Air Quality Index	National Avg.
Farina, IL	749	40	20.0%
St. Elmo, IL	1,466	40	20.0%
Iola, IL	91	40	20.0%
Brownstown, IL	839	40	20.0%
Vandalia, IL	6,615	40	20.0%
St. Peter, IL	438	40	20.0%

Cities with similar population

City	Population	Air Quality Index	National Avg.
Calion, AR	438	35	30.0%
Shaver Lake, CA	438	60	20.0%
Lake City, CO	438	44	12.0%
Moreland, GA	438	52	4.0%
Alleman, IA	438	37	26.0%
St. Peter, IL	438	40	20.0%

Source: The St. Peter, 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.