Mount Vernon, VA Weather - Forecast & Monthly Averages

TEMPERATURE	39
HUMIDITY	85
PRESSURE	100480
WIND COND.	270 5.4

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Weather Quick Facts

The highest monthly average temperature in Mount Vernon for July is 78.1 degrees
The lowest monthly average temperature in Mount Vernon for January is 35 degrees
The most monthly precipitation in Mount Vernon occurs in September with 11.4 inches
The air quality index in Mount Vernon is 12% worse than the national average
The pollution index in Mount Vernon is 2% worse than the national average

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Mount Vernon 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	26°F	45°F	35°F	4.6"
February	27°F	48°F	37°F	4.1"
March	36°F	59°F	47°F	5.4"
April	45°F	70°F	57°F	6.6"
May	54°F	77°F	66°F	7.2"
June	63°F	86°F	74°F	10.2"
July	67°F	89°F	78°F	8.7"
August	66°F	87°F	76°F	7.4"
September	59°F	81°F	69°F	11.4"
October	48°F	70°F	58°F	8.8"
November	37°F	59°F	47°F	5.7"
December	31°F	50°F	40°F	5.9"

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Mount Vernon 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	Mount Vernon	Virginia	National
Air quality index	47	58	42
Pollution index	2,776,590	1,561,881	2,726,193

Mount Vernon air quality

Measurement	Total
Days measured	365
Days with good air quality	209
Days with moderate air quality	145
Days w/ poor A.Q. for sensitive groups	10
Days with unhealthy air quality	1

Air quality details

Pollutant	Total
Arsenic	0.070%
Benzene	0.020%
Carbon Tetrachloride	0.010%
Lead	0.020%
Mercury	0.030%

Average monthly Mount Vernon temperature with heat index

Mount Vernon monthly precipitation with daily maximum

Mount Vernon monthly snow depth with daily maximum

Mount Vernon monthly wind speed information

Nearby cities with good air quality

City	Population	Air Quality Index	National Avg.
Hillcrest Heights, MD	16,498	47	6.0%
Temple Hills, MD	8,221	47	6.0%
Fort Hunt, VA	16,383	47	6.0%
Cheverly, MD	6,439	47	6.0%
Landover, MD	22,991	47	6.0%
Mount Vernon, VA	13,490	47	6.0%

Cities with similar population

City	Population	Air Quality Index	National Avg.
Gladeview, FL	13,490	41	18.0%
Wetaskiwin, AB	13,487	n/a
Grover Beach, CA	13,481	46	8.0%
Englewood, OH	13,474	47	6.0%
South Park Township, PA	13,470	56	12.0%
Mount Vernon, VA	13,490	47	6.0%

Source: The Mount Vernon, VA 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.