Snow in Marion, Iowa Winter storm alerts · 7-day snow forecast · average snowfall
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Marion averages 34.3 inches of snow a year. The snowiest month is December (9.0″), and snow usually falls from October through April. On about 11 days a year at least an inch falls. Snow covers the ground (1″+) on roughly 56 days of an average winter.
Average snowfall by month
Month
Snowfall
Days 1″+
Days with snow cover
Freezing nights
Avg. low
October
0.6″
<1
<1
5
42°F
November
2.2″
1
1
18
29°F
December
9.0″
3
12
28
19°F
January
8.7″
3
20
30
13°F
February
8.3″
3
16
25
17°F
March
4.0″
1
6
20
28°F
April
1.5″
1
<1
7
38°F
May
0″
0
0
1
50°F
Year
34.3″
11
56
134
NOAA NCEI U.S. Climate Normals 1991–2020 — snowfall at Cedar Rapids #1 (1 mi from the city center, -46 ft elevation difference). Averages smooth out big years: single winters can bring half or double the normal.
34.3 inches in an average year (NOAA U.S. Climate Normals 1991–2020, Cedar Rapids #1 station, 1 miles away). The snowiest month is December with 9.0 inches.
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How many freezing nights does Marion have?
About 134 nights a year drop to 32 °F or below (NOAA 1991–2020); the coldest month, January, averages a low of 13 °F.