St. Louis, MI Weather - Forecast & Monthly Averages

TEMPERATURE	44
HUMIDITY	53
PRESSURE	102510
WIND COND.	100 13

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Weather Quick Facts

The highest monthly average temperature in St. Louis for July is 70.6 degrees
The lowest monthly average temperature in St. Louis for February is 23.6 degrees
The most monthly precipitation in St. Louis occurs in June with 8.8 inches
The air quality index in St. Louis is 38% better than the national average
The pollution index in St. Louis is 49% better than the national average

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St. Louis 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	17°F	31°F	24°F	3.1"
February	16°F	31°F	24°F	3.1"
March	26°F	44°F	34°F	3.6"
April	35°F	58°F	46°F	5.0"
May	46°F	71°F	58°F	5.0"
June	55°F	78°F	66°F	8.8"
July	59°F	82°F	71°F	5.0"
August	58°F	80°F	69°F	6.1"
September	51°F	73°F	61°F	5.6"
October	41°F	61°F	50°F	6.2"
November	32°F	48°F	39°F	3.5"
December	23°F	35°F	29°F	2.7"

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St. Louis 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. Louis	Michigan	National
Air quality index	26	69	42
Pollution index	1,401,450	4,161,606	2,726,193

St. Louis air quality information

Measurement	Total
Days measured	316
Days with good air quality	288
Days with moderate air quality	28
Days w/ poor A.Q. for sensitive groups	0
Days with unhealthy air quality	0

St. Louis air quality information

Pollutant	Total
Arsenic	0.001%
Benzene	0.020%
Carbon Tetrachloride	0.002%
Lead	0.005%
Mercury	0.000%

Average monthly St. Louis temperature with heat index

St. Louis monthly precipitation with daily maximum

St. Louis monthly snow depth with daily maximum

St. Louis monthly wind speed information

Nearby cities with good air quality

City	Population	Air Quality Index	National Avg.
Merrill, MI	852	26	48.0%
Alma, MI	8,918	26	48.0%
Breckenridge, MI	1,428	26	48.0%
Mount Pleasant, MI	25,290	26	48.0%
Shepherd, MI	1,380	26	48.0%
St. Louis, MI	7,156	26	48.0%

Cities with similar population

City	Population	Air Quality Index	National Avg.
Heber Springs, AR	7,156	45	10.0%
Seminole, OK	7,155	36	28.0%
Gridley, CA	7,154	44	12.0%
Knoxville, IA	7,154	39	22.0%
Walled Lake, MI	7,153	56	12.0%
St. Louis, MI	7,156	26	48.0%

Source: The St. Louis, MI 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.