St. Charles, ID Weather - Forecast & Monthly Averages

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TEMPERATURE
HUMIDITY
PRESSURE
WIND COND.

Weather Quick Facts

The highest monthly average temperature in St. Charles for July is 73.9 degrees
The lowest monthly average temperature in St. Charles for January is 21.2 degrees
The most monthly precipitation in St. Charles occurs in April with 2.3 inches
The air quality index in St. Charles is 5% worse than the national average
The pollution index in St. Charles is 11% 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	12°F	31°F	21°F	1.6"
February	17°F	38°F	27°F	1.3"
March	27°F	51°F	38°F	1.8"
April	33°F	61°F	46°F	2.3"
May	39°F	70°F	54°F	2.3"
June	46°F	83°F	65°F	1.2"
July	54°F	93°F	74°F	0.5"
August	51°F	90°F	71°F	0.8"
September	43°F	80°F	60°F	1.5"
October	33°F	64°F	47°F	1.5"
November	25°F	49°F	36°F	1.2"
December	16°F	34°F	25°F	1.2"

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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	Idaho	National
Air quality index	44	32	42
Pollution index	2,422,660	2,063,710	2,726,193

St. Charles air quality

Measurement	Total
Days measured	365
Days with good air quality	272
Days with moderate air quality	79
Days w/ poor A.Q. for sensitive groups	14
Days with unhealthy air quality	0

Air quality details

Pollutant	Total
Arsenic	0.001%
Benzene	0.040%
Carbon Tetrachloride	0.000%
Lead	0.050%
Mercury	0.001%

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.
Montpelier, ID	2,597	44	12.0%
Paris, ID	690	44	12.0%
Garden City, UT	351	44	12.0%
Bloomington, ID	211	44	12.0%
St. Charles, ID	164	44	12.0%

Cities with similar population

City	Population	Air Quality Index	National Avg.
Five Points, AL	164	42	16.0%
Paradise CDP, CA	164	46	8.0%
Hasty, CO	164	20	60.0%
Pilot Mound, IA	164	37	26.0%
Hillview, IL	164	40	20.0%
St. Charles, ID	164	44	12.0%

Source: The St. Charles, ID 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.