Snow in McLean, Virginia Winter storm alerts · 7-day snow forecast · average snowfall
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McLean averages 5.8 inches of snow a year. The snowiest month is January (2.9″), and snow usually falls from December through March. On about 3 days a year at least an inch falls. Snow covers the ground (1″+) on roughly 6 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
47°F
November
0″
0
0
11
36°F
December
0.8″
<1
1
21
30°F
January
2.9″
1
2
25
26°F
February
1.4″
1
2
21
27°F
March
0.7″
<1
1
15
34°F
April
0″
0
0
3
44°F
Year
5.8″
3
6
95
NOAA NCEI U.S. Climate Normals 1991–2020 — snowfall at Dalecarlia Rsvr (3 mi from the city center, -148 ft elevation difference). Averages smooth out big years: single winters can bring half or double the normal.
5.8 inches in an average year (NOAA U.S. Climate Normals 1991–2020, Dalecarlia Rsvr station, 3 miles away). The snowiest month is January with 2.9 inches.
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How many freezing nights does McLean have?
About 95 nights a year drop to 32 °F or below (NOAA 1991–2020); the coldest month, January, averages a low of 26 °F.