Average Annual Snowfall in Iowa
The tables below give yearly averages for snowfall at cities, towns and other locations 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 1991 to 2020 for the US National Centers for Environmental Information.
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
| Days | Place | Inches | Centimetres |
|---|---|---|---|
| 13.5 | Burlington | 21.8 | 55.4 |
| 24.6 | Cedar Rapids | 34.3 | 87.1 |
| 22.6 | Clinton | 31.9 | 81.0 |
| 26.5 | Cresco | 40.3 | 102.4 |
| 23.3 | Decorah | 37.5 | 95.3 |
| 17.4 | Dubuque | 36.1 | 91.7 |
| 14.1 | Iowa City | 27.5 | 69.9 |
| 26.6 | Waterloo | 39.1 | 99.3 |
Central Iowa
| Days | Place | Inches | Centimetres |
|---|---|---|---|
| 17.0 | Ames | 32.7 | 83.1 |
| 25.3 | Des Moines | 36.5 | 92.7 |
| 21.3 | Fort Dodge | 39.0 | 99.1 |
| 15.6 | Marshalltown | 25.3 | 64.3 |
| 30.2 | Mason City | 44.4 | 112.8 |
| 17.1 | Ottumwa | 23.6 | 59.9 |
Western Iowa
| Days | Place | Inches | Centimetres |
|---|---|---|---|
| 19.3 | Lake Park | 41.0 | 104.1 |
| 18.1 | Milford | 38.0 | 96.5 |
| 15.8 | Onawa | 31.0 | 78.7 |
| 11.2 | Shenandoah | 26.4 | 67.1 |
| 24.8 | Sioux City | 36.0 | 91.4 |
| 14.8 | Spirit Lake | 41.5 | 105.4 |
Reference
NOAA National Centers for Environmental Information (NCEI). Climate Normals.