Snow in Olney, Maryland Winter storm alerts · 7-day snow forecast · average snowfall
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Olney averages 32.6 inches of snow a year. The snowiest month is January (10.6″), and snow usually falls from October through March. On about 8 days a year at least an inch falls, and about 1 day brings 10 inches or more. Snow covers the ground (1″+) on roughly 27 days of an average winter.
Average snowfall by month
Month
Snowfall
Days 1″+
Days with snow cover
Freezing nights
Avg. low
October
0.3″
<1
<1
<1
48°F
November
0.7″
<1
1
9
38°F
December
6.3″
1
4
20
31°F
January
10.6″
2
8
22
27°F
February
7.9″
3
9
20
28°F
March
6.8″
2
5
13
36°F
April
0″
0
0
2
46°F
Year
32.6″
8
27
86
NOAA NCEI U.S. Climate Normals 1991–2020 — snowfall at Clarksburg 2.1 Ne (12 mi from the city center, +151 ft elevation difference); temperatures at Rockville 1 Ne. Averages smooth out big years: single winters can bring half or double the normal.
32.6 inches in an average year (NOAA U.S. Climate Normals 1991–2020, Clarksburg 2.1 Ne station, 12 miles away). The snowiest month is January with 10.6 inches.
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How many freezing nights does Olney have?
About 86 nights a year drop to 32 °F or below (NOAA 1991–2020); the coldest month, January, averages a low of 27 °F.