Snow in Manassas, Virginia Winter storm alerts · 7-day snow forecast · average snowfall
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Manassas averages 21.0 inches of snow a year. The snowiest month is February (7.0″), and snow usually falls from November through April. On about 5 days a year at least an inch falls. Snow covers the ground (1″+) on roughly 14 days of an average winter.
Average snowfall by month
Month
Snowfall
Days 1″+
Days with snow cover
Freezing nights
Avg. low
October
0″
0
0
2
46°F
November
0.3″
<1
<1
12
35°F
December
2.8″
1
2
20
29°F
January
6.9″
2
4
24
24°F
February
7.0″
2
5
21
26°F
March
3.9″
1
2
15
32°F
April
0.1″
0
0
2
43°F
Year
21.0″
5
14
94
NOAA NCEI U.S. Climate Normals 1991–2020 — snowfall at Washington Dc Dulles Airport (13 mi from the city center, -20 ft elevation difference); temperatures at Manassas. Averages smooth out big years: single winters can bring half or double the normal.
21.0 inches in an average year (NOAA U.S. Climate Normals 1991–2020, Washington Dc Dulles Airport station, 13 miles away). The snowiest month is February with 7.0 inches.
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How many freezing nights does Manassas have?
About 94 nights a year drop to 32 °F or below (NOAA 1991–2020); the coldest month, January, averages a low of 24 °F.