Frost dates in Fort Peck, MT
The average last spring frost in Fort Peck is around May 10 and the first fall frost is around September 30. That gives Fort Peck an average growing season of about 143 days.
Last spring frost
| Early (10% chance after) | April 23 |
|---|---|
| Average (50%) | May 10 |
| Late (90%) | May 21 |
First fall frost
| Early (10%) | September 14 |
|---|---|
| Average (50%) | September 30 |
| Late (90% chance before) | October 13 |