Frost dates in Belt, MT
The average last spring frost in Belt is around May 26 and the first fall frost is around September 17. That gives Belt an average growing season of about 114 days.
Last spring frost
| Early (10% chance after) | May 7 |
|---|---|
| Average (50%) | May 26 |
| Late (90%) | June 8 |
First fall frost
| Early (10%) | September 7 |
|---|---|
| Average (50%) | September 17 |
| Late (90% chance before) | September 30 |