St. Charles, ID Weather - Forecast & Monthly Averages

TEMPERATURE	54
HUMIDITY	20
PRESSURE	101760.98
WIND COND.	330 16.7

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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 information

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

St. Charles air quality information

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.
Paris, ID	667	44	12.0%
Garden City, UT	337	44	12.0%
Bloomington, ID	204	44	12.0%
Montpelier, ID	2,512	44	12.0%
St. Charles, ID	160	44	12.0%

Cities with similar population

City	Population	Air Quality Index	National Avg.
Tomales, CA	160	34	32.0%
Dewy Rose, GA	160	44	12.0%
Alexander, IA	160	15	70.0%
Andover, IA	160	42	16.0%
Stockton, IA	160	46	8.0%
St. Charles, ID	160	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.