St. Charles, AR Weather - Forecast & Monthly Averages

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Weather Quick Facts

The highest monthly average temperature in St. Charles for August is 84 degrees
The lowest monthly average temperature in St. Charles for January is 43.6 degrees
The most monthly precipitation in St. Charles occurs in October with 17.9 inches
The air quality index in St. Charles is 2% worse than the national average
The pollution index in St. Charles is 69% 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	38°F	53°F	44°F	9.4"
February	38°F	56°F	45°F	3.6"
March	48°F	70°F	56°F	5.2"
April	52°F	74°F	61°F	6.9"
May	63°F	84°F	72°F	4.2"
June	71°F	91°F	80°F	3.0"
July	72°F	90°F	79°F	7.8"
August	74°F	96°F	84°F	6.3"
September	67°F	88°F	76°F	11.9"
October	55°F	76°F	64°F	17.9"
November	46°F	68°F	55°F	5.5"
December	36°F	56°F	44°F	9.2"

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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	Arkansas	National
Air quality index	43	38	42
Pollution index	855,910	1,487,822	2,726,193

St. Charles air quality

Measurement	Total
Days measured	364
Days with good air quality	270
Days with moderate air quality	94
Days w/ poor A.Q. for sensitive groups	0
Days with unhealthy air quality	0

Air quality details

Pollutant	Total
Arsenic	0.001%
Benzene	0.010%
Carbon Tetrachloride	0.000%
Lead	0.020%
Mercury	0.140%

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.
DeWitt, AR	3,046	43	14.0%
Marvell, AR	1,620	43	14.0%
St. Charles, AR	338	43	14.0%

Cities with similar population

City	Population	Air Quality Index	National Avg.
Northway, AK	338	38	24.0%
Tununak, AK	338	31	38.0%
Strawberry, AR	338	45	10.0%
Winkelman, AZ	338	47	6.0%
Westville, FL	338	35	30.0%
St. Charles, AR	338	43	14.0%

Source: The St. Charles, AR 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.