Frost dates in Walkerville, MT
The average last spring frost in Walkerville is around June 14 and the first fall frost is around September 7. That gives Walkerville an average growing season of about 85 days.
Last spring frost
| Early (10% chance after) | May 21 |
|---|---|
| Average (50%) | June 14 |
| Late (90%) | July 5 |
First fall frost
| Early (10%) | August 23 |
|---|---|
| Average (50%) | September 7 |
| Late (90% chance before) | September 24 |