St. Clair, MO Weather - Forecast & Monthly Averages

TEMPERATURE	36
HUMIDITY	69
PRESSURE	101727.12
WIND COND.	310 14.8

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Weather Quick Facts

The highest monthly average temperature in St. Clair for July is 78.7 degrees
The lowest monthly average temperature in St. Clair for January is 32.1 degrees
The most monthly precipitation in St. Clair occurs in April with 5.3 inches
The air quality index in St. Clair is 28% worse than the national average
The pollution index in St. Clair is 12% worse than the national average

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St. Clair 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	23°F	44°F	32°F	2.1"
February	25°F	46°F	35°F	1.8"
March	36°F	60°F	47°F	3.7"
April	46°F	71°F	58°F	5.3"
May	55°F	78°F	66°F	4.5"
June	65°F	87°F	76°F	4.8"
July	68°F	90°F	79°F	2.9"
August	66°F	89°F	77°F	3.4"
September	58°F	82°F	69°F	3.9"
October	46°F	70°F	57°F	3.0"
November	36°F	59°F	46°F	2.8"
December	27°F	45°F	35°F	3.1"

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St. Clair 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. Clair	Missouri	National
Air quality index	54	97	42
Pollution index	3,042,530	1,630,255	2,726,193

St. Clair air quality

Measurement	Total
Days measured	365
Days with good air quality	134
Days with moderate air quality	221
Days w/ poor A.Q. for sensitive groups	8
Days with unhealthy air quality	2

Air quality details

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

Average monthly St. Clair temperature with heat index

St. Clair monthly precipitation with daily maximum

St. Clair monthly snow depth with daily maximum

St. Clair monthly wind speed information

Nearby cities with good air quality

City	Population	Air Quality Index	National Avg.
Bourbon, MO	1,866	39	22.0%
Leslie, MO	73	39	22.0%
St. Cloud, MO	36	39	22.0%
West Sullivan, MO	280	39	22.0%
Lake Tekakwitha, MO	270	54	8.0%
St. Clair, MO	4,702	54	8.0%

Cities with similar population

City	Population	Air Quality Index	National Avg.
Vandercook Lake, MI	4,702	39	22.0%
Greenstone, ON	4,702	n/a
Gibson, AR	4,701	45	10.0%
Samoset, FL	4,701	38	24.0%
Auburn, IL	4,701	40	20.0%
St. Clair, MO	4,702	54	8.0%

Source: The St. Clair, MO 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.