Average Snowfall for Montana in May
The tables below give monthly averages for snowfall during May at cities, towns and parks in Montana. 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: Northwestern, Southwestern, South - Central and Eastern Montana.
Northwestern Montana
| Days | Place | Inches | Centimetres |
|---|---|---|---|
| 0.2 | Kalispell | 0.2 | 0.5 |
| 0.0 | Libby | 0.0 | 0.0 |
| 0.3 | Missoula | 0.3 | 0.8 |
| 0.5 | Seeley Lake | 0.7 | 1.8 |
| 0.3 | West Glacier | 0.5 | 1.3 |
| 0.1 | Whitefish | 0.1 | 0.3 |
Southwestern Montana
| Days | Place | Inches | Centimetres |
|---|---|---|---|
| 1.3 | Anaconda | 2.0 | 5.1 |
| 1.5 | Bozeman | 3.6 | 9.1 |
| 0.0 | Dillon | 0.1 | 0.3 |
| 0.4 | Hebgen Lake Dam | 1.2 | 3.0 |
| 0.2 | Helena | 0.1 | 0.3 |
| 1.4 | Sula | 2.0 | 5.1 |
| 1.8 | Virginia City | 4.3 | 10.9 |
South - Central Montana
| Days | Place | Inches | Centimetres |
|---|---|---|---|
| 0.1 | Bighorn Lake, Yellowtail Dam | 0.2 | 0.5 |
| 0.8 | Billings | 0.9 | 2.3 |
| 4.0 | Cooke City | 9.0 | 22.9 |
| 3.5 | Mystic Lake | 14.6 | 37.1 |
| 2.5 | Red Lodge | 6.2 | 15.7 |
Eastern Montana
| Days | Place | Inches | Centimetres |
|---|---|---|---|
| 0.3 | Glasgow | 0.3 | 0.8 |
| 0.2 | Glendive | 0.5 | 1.3 |
| 1.4 | Great Falls | 1.9 | 4.8 |
| 0.3 | Havre City | 0.4 | 1.0 |
| 1.6 | Lewistown | 3.1 | 7.9 |
Reference
NOAA National Centers for Environmental Information (NCEI). Climate Normals.