Maryland Heights, MO Weather - Forecast & Monthly Averages

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Weather Quick Facts

The highest monthly average temperature in Maryland Heights for July is 80.9 degrees
The lowest monthly average temperature in Maryland Heights for January is 33.1 degrees
The most monthly precipitation in Maryland Heights occurs in April with 5.4 inches
The air quality index in Maryland Heights is 28% worse than the national average
The pollution index in Maryland Heights is 225% worse than the national average

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Maryland Heights 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	24°F	45°F	33°F	2.4"
February	25°F	48°F	35°F	2.2"
March	37°F	61°F	48°F	3.6"
April	47°F	72°F	59°F	5.4"
May	57°F	80°F	68°F	4.6"
June	67°F	89°F	78°F	5.2"
July	70°F	92°F	81°F	4.2"
August	69°F	91°F	79°F	3.6"
September	61°F	84°F	72°F	4.3"
October	48°F	72°F	60°F	3.4"
November	37°F	60°F	48°F	3.4"
December	27°F	47°F	37°F	3.5"

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Maryland Heights 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	Maryland Heights	Missouri	National
Air quality index	54	97	42
Pollution index	8,870,230	1,630,255	2,726,193

Maryland Heights air quality information

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

Maryland Heights air quality information

Pollutant	Total
Arsenic	0.180%
Benzene	0.060%
Carbon Tetrachloride	0.020%
Lead	0.030%
Mercury	0.120%

Average monthly Maryland Heights temperature with heat index

Maryland Heights monthly precipitation with daily maximum

Maryland Heights monthly snow depth with daily maximum

Maryland Heights monthly wind speed information

Nearby cities with good air quality

City	Population	Air Quality Index	National Avg.
Dellwood, MO	5,010	54	8.0%
Hazelwood, MO	25,222	54	8.0%
St. Ann, MO	12,689	54	8.0%
Woodson Terrace, MO	4,044	54	8.0%
Ellisville, MO	9,752	54	8.0%
Maryland Heights, MO	26,996	54	8.0%

Cities with similar population

City	Population	Air Quality Index	National Avg.
West Chicago, IL	26,998	55	10.0%
New London, CT	27,001	37	26.0%
Mount Pleasant, WI	27,008	39	22.0%
Bristol, TN	26,973	45	10.0%
Norco, CA	27,021	89	78.0%
Maryland Heights, MO	26,996	54	8.0%

Source: The Maryland Heights, 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.