Frost dates in Pinesdale, MT
The average last spring frost in Pinesdale is around May 26 and the first fall frost is around September 19. That gives Pinesdale an average growing season of about 116 days.
Last spring frost
| Early (10% chance after) | May 10 |
|---|---|
| Average (50%) | May 26 |
| Late (90%) | June 15 |
First fall frost
| Early (10%) | September 4 |
|---|---|
| Average (50%) | September 19 |
| Late (90% chance before) | October 4 |