Frost dates in Lodge Grass, MT
The average last spring frost in Lodge Grass is around May 29 and the first fall frost is around September 13. That gives Lodge Grass an average growing season of about 107 days.
Last spring frost
| Early (10% chance after) | May 13 |
|---|---|
| Average (50%) | May 29 |
| Late (90%) | June 16 |
First fall frost
| Early (10%) | September 1 |
|---|---|
| Average (50%) | September 13 |
| Late (90% chance before) | October 2 |