Average Snowfall for Idaho in December
The tables below give monthly averages for snowfall during December at cities, communities and other locations around Idaho. The numbers are for the total amount of new snow and how many days it snows at least 0.1 inches (0.25 centimetres) this month.
The snowfall totals are 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, Southwestern and Northern Idaho.
Eastern Idaho
| Days | Place | Inches | Centimetres |
|---|---|---|---|
| 12.3 | Pocatello | 16.4 | 41.7 |
| 7.2 | Preston | 14.1 | 35.8 |
Central Idaho
| Days | Place | Inches | Centimetres |
|---|---|---|---|
| 8.8 | Craters of the Moon Monument | 22.9 | 58.2 |
| 9.9 | Ketchum | 32.0 | 81.3 |
| 3.4 | Lake Walcott, Minidoka Dam | 4.6 | 11.7 |
| 7.1 | Middle Fork Lodge | 12.5 | 31.8 |
| 4.1 | Salmon | 6.4 | 16.3 |
| 8.9 | St. Maries | 18.3 | 46.5 |
| 5.0 | Twin Falls | 6.0 | 15.2 |
Southwestern Idaho
| Days | Place | Inches | Centimetres |
|---|---|---|---|
| 5.5 | Boise | 5.6 | 14.2 |
| 12.2 | McCall | 33.5 | 85.1 |
Northern Idaho
| Days | Place | Inches | Centimetres |
|---|---|---|---|
| 8.4 | Bonners Ferry | 17.3 | 43.9 |
| 14.2 | Elk City | 26.4 | 67.1 |
| 9.5 | Kellogg | 13.8 | 35.1 |
| 3.6 | Lewiston | 4.1 | 10.4 |
| 7.8 | Moscow | 15.5 | 39.4 |
| 1.2 | Riggins | 2.0 | 5.1 |
| 9.3 | Sandpoint | 19.3 | 49.0 |
| 9.5 | Wallace | 22.7 | 57.7 |
Reference
NOAA National Centers for Environmental Information (NCEI). Climate Normals.