Average Annual Snowfall in Iowa

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The tables below give yearly averages for snowfall at cities, towns and lakes in Iowa. The numbers are for the total amount of snow and for how many days it snows at least 0.1 inches (0.25 centimetres).

The snowfall totals are annual averages based on weather data collected from 1981 to 2010 for the NOAA National Climatic Data Center.

You can jump to a separate table for each region of the state: Eastern, Central and Western Iowa.

Place name links take you to more detailed information on snowfall, snowstorms and snow accumulation for that location.

Eastern Iowa

Average annual snowfall
Days Place Inches Centimetres
17.5 Burlington 23.5   59.7
24.6 Cedar Rapids 31.5   80.0
21.9 Clinton 30.3   77.0
26.6 Cresco 39.5 100.3
23.2 Decorah 38.8   98.6
17.8 Dubuque 33.7   85.6
14.8 Iowa City 27.2   69.1
26.4 Waterloo 34.5   87.6

Central Iowa

Yearly snow averages
Days Place Inches Centimetres
17.3 Ames 31.6   80.3
26.2 Des Moines 34.9   88.6
19.2 Fort Dodge 35.8   90.9
14.2 Marshalltown 25.4   64.5
28.2 Mason City 41.2 104.6
16.3 Ottumwa 23.5   59.7

Western Iowa

Average total snowfall for a year
Days Place Inches Centimetres
16.9 Carroll 29.2   74.2
20.1 Lake Park 39.9 101.3
17.0 Onawa 30.3   77.0
11.1 Shenandoah 25.1   63.8
25.5 Sioux City 34.8   88.4
17.7 Storm Lake 36.4   92.5
Reference

National Climatic Data Center. NOAA's 1981-2010 Climate Normals.

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