St. Charles, SD Weather - Forecast & Monthly Averages

TEMPERATURE	42
HUMIDITY	70
PRESSURE	101120
WIND COND.

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Weather Quick Facts

The highest monthly average temperature in St. Charles for July is 77.4 degrees
The lowest monthly average temperature in St. Charles for January is 24.9 degrees
The most monthly precipitation in St. Charles occurs in June with 3.9 inches
The air quality index in St. Charles is 14% better than the national average
The pollution index in St. Charles is 93% better than the national average

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St. Charles 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	16°F	37°F	25°F	0.2"
February	16°F	38°F	26°F	0.3"
March	28°F	53°F	38°F	0.7"
April	37°F	62°F	48°F	2.4"
May	47°F	72°F	59°F	3.5"
June	58°F	83°F	70°F	3.9"
July	65°F	92°F	77°F	1.9"
August	62°F	88°F	74°F	3.4"
September	53°F	80°F	65°F	1.8"
October	41°F	65°F	51°F	1.8"
November	28°F	52°F	39°F	0.3"
December	16°F	36°F	25°F	0.3"

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St. Charles 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. Charles	South Dakota	National
Air quality index	36	36	42
Pollution index	179,967	345,623	2,726,193

St. Charles air quality

Measurement	Total
Days measured	365
Days with good air quality	321
Days with moderate air quality	43
Days w/ poor A.Q. for sensitive groups	1
Days with unhealthy air quality	0

Air quality details

Pollutant	Total
Arsenic	0.000%
Benzene	0.002%
Carbon Tetrachloride	0.000%
Lead	0.000%
Mercury	0.000%

Average monthly St. Charles temperature with heat index

St. Charles monthly precipitation with daily maximum

St. Charles monthly snow depth with daily maximum

St. Charles monthly wind speed information

Nearby cities with good air quality

City	Population	Air Quality Index	National Avg.
Butte, NE	348	36	28.0%
Burke, SD	705	36	28.0%
Naper, NE	83	36	28.0%
Herrick, SD	66	36	28.0%
Bonesteel, SD	386	36	28.0%
St. Charles, SD	8	36	28.0%

Cities with similar population

City	Population	Air Quality Index	National Avg.
Platinum, AK	8	31	38.0%
Ugashik, AK	8	31	38.0%
Natural Bridge, AL	8	41	18.0%
Charco, AZ	8	74	48.0%
Mojave Ranch Estates, AZ	8	13	74.0%
St. Charles, SD	8	36	28.0%

Source: The St. Charles, SD 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.