Snow in Saint Charles, Maryland Winter storm alerts · 7-day snow forecast · average snowfall
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Saint Charles averages 13.7 inches of snow a year. The snowiest month is February (5.0″), and snow usually falls from November through March. On about 4 days a year at least an inch falls. Snow covers the ground (1″+) on roughly 10 days of an average winter.
Average snowfall by month
Month
Snowfall
Days 1″+
Days with snow cover
Freezing nights
Avg. low
November
0.1″
0
0
6
39°F
December
1.7″
1
1
18
31°F
January
4.9″
1
4
22
27°F
February
5.0″
1
4
20
28°F
March
2.0″
1
1
13
35°F
April
0″
0
0
1
45°F
Year
13.7″
4
10
80
NOAA NCEI U.S. Climate Normals 1991–2020 — snowfall at Washington Reagan Airport (18 mi from the city center, -217 ft elevation difference); temperatures at Oxon Hill. Averages smooth out big years: single winters can bring half or double the normal.
13.7 inches in an average year (NOAA U.S. Climate Normals 1991–2020, Washington Reagan Airport station, 18 miles away). The snowiest month is February with 5.0 inches.
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How many freezing nights does Saint Charles have?
About 80 nights a year drop to 32 °F or below (NOAA 1991–2020); the coldest month, January, averages a low of 27 °F.