Frost dates in Cascade, MT
The average last spring frost in Cascade is around May 23 and the first fall frost is around September 14. That gives Cascade an average growing season of about 114 days.
Last spring frost
| Early (10% chance after) | May 7 |
|---|---|
| Average (50%) | May 23 |
| Late (90%) | June 9 |
First fall frost
| Early (10%) | August 28 |
|---|---|
| Average (50%) | September 14 |
| Late (90% chance before) | September 29 |