Frost dates in Whitehall, MT
The average last spring frost in Whitehall is around June 24 and the first fall frost is around August 30. That gives Whitehall an average growing season of about 67 days.
Last spring frost
| Early (10% chance after) | June 18 |
|---|---|
| Average (50%) | June 24 |
| Late (90%) | July 15 |
First fall frost
| Early (10%) | August 9 |
|---|---|
| Average (50%) | August 30 |
| Late (90% chance before) | September 16 |