Snow in Rapid City, South Dakota Winter storm alerts · 7-day snow forecast · average snowfall
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Rapid City averages 53.7 inches of snow a year. The snowiest month is March (10.4″), and snow usually falls from September through June. On about 16 days a year at least an inch falls, and about 1 day brings 10 inches or more. Snow covers the ground (1″+) on roughly 46 days of an average winter.
Average snowfall by month
Month
Snowfall
Days 1″+
Days with snow cover
Freezing nights
Avg. low
September
0.1″
0
0
<1
51°F
October
3.4″
1
2
8
38°F
November
6.5″
2
5
20
27°F
December
6.6″
2
10
27
19°F
January
5.3″
2
9
27
16°F
February
9.1″
3
10
25
18°F
March
10.4″
3
7
23
26°F
April
10.0″
2
4
12
34°F
May
2.2″
1
<1
2
45°F
June
0.1″
0
0
<1
55°F
Year
53.7″
16
46
144
NOAA NCEI U.S. Climate Normals 1991–2020 — snowfall at Rapid City Wfo (1 mi from the city center, +131 ft elevation difference). Averages smooth out big years: single winters can bring half or double the normal.
53.7 inches in an average year (NOAA U.S. Climate Normals 1991–2020, Rapid City Wfo station, 1 miles away). The snowiest month is March with 10.4 inches.
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This page checks the National Weather Service for active alerts at Rapid City's location every time you open it; the box at the top lists any winter storm, winter weather, cold or freeze alert in effect right now.
How many freezing nights does Rapid City have?
About 144 nights a year drop to 32 °F or below (NOAA 1991–2020); the coldest month, January, averages a low of 16 °F.