Frost dates in Whitefish, MT
The average last spring frost in Whitefish is around May 22 and the first fall frost is around September 22. That gives Whitefish an average growing season of about 123 days.
Last spring frost
| Early (10% chance after) | May 3 |
|---|---|
| Average (50%) | May 22 |
| Late (90%) | June 10 |
First fall frost
| Early (10%) | September 9 |
|---|---|
| Average (50%) | September 22 |
| Late (90% chance before) | October 6 |