Manassas, VA Weather - Forecast & Monthly Averages

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TEMPERATURE	70
HUMIDITY	28
PRESSURE	101083.7
WIND COND.	200 16.7

Weather Quick Facts

The highest monthly average temperature in Manassas for July is 77.1 degrees
The lowest monthly average temperature in Manassas for January is 33.8 degrees
The most monthly precipitation in Manassas occurs in September with 11.6 inches
The air quality index in Manassas is 12% worse than the national average
The pollution index in Manassas is 81% better than the national average

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Manassas 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	25°F	44°F	34°F	2.9"
February	25°F	47°F	35°F	2.9"
March	34°F	57°F	45°F	5.0"
April	43°F	70°F	56°F	4.1"
May	54°F	77°F	65°F	4.0"
June	62°F	85°F	73°F	5.4"
July	67°F	89°F	77°F	9.1"
August	65°F	87°F	75°F	5.1"
September	58°F	80°F	68°F	11.6"
October	46°F	70°F	57°F	7.0"
November	35°F	58°F	45°F	6.5"
December	30°F	49°F	39°F	2.7"

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Manassas 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	Manassas	Virginia	National
Air quality index	47	58	42
Pollution index	520,936	1,561,881	2,726,193

Manassas 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	0.020%
Benzene	0.010%
Carbon Tetrachloride	0.002%
Lead	0.050%
Mercury	0.001%

Average monthly Manassas temperature with heat index

Manassas monthly precipitation with daily maximum

Manassas monthly snow depth with daily maximum

Manassas monthly wind speed information

Nearby cities with good air quality

City	Population	Air Quality Index	National Avg.
Bull Run Mountain Estates, VA	1,845	38	24.0%
New Baltimore, VA	11,303	38	24.0%
Buckhall, VA	18,624	47	6.0%
Arcola, VA	1,810	47	6.0%
McNair, VA	21,567	47	6.0%
Manassas, VA	42,659	47	6.0%

Cities with similar population

City	Population	Air Quality Index	National Avg.
Coppell, TX	42,647	51	2.0%
Mableton, GA	42,633	52	4.0%
Langford, BC	42,691	n/a
Woodlawn, MD	42,611	46	8.0%
Moline, IL	42,715	46	8.0%
Manassas, VA	42,659	47	6.0%

Source: The Manassas, 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.