Frost dates in Dutton, MT
The average last spring frost in Dutton is around May 24 and the first fall frost is around September 21. That gives Dutton an average growing season of about 120 days.
Last spring frost
| Early (10% chance after) | May 11 |
|---|---|
| Average (50%) | May 24 |
| Late (90%) | June 8 |
First fall frost
| Early (10%) | September 9 |
|---|---|
| Average (50%) | September 21 |
| Late (90% chance before) | September 30 |