Frost dates in Crested Butte, CO
The average last spring frost in Crested Butte is around July 7 and the first fall frost is around August 18. That gives Crested Butte an average growing season of about 42 days.
Last spring frost
| Early (10% chance after) | June 18 |
|---|---|
| Average (50%) | July 7 |
| Late (90%) | July 30 |
First fall frost
| Early (10%) | August 2 |
|---|---|
| Average (50%) | August 18 |
| Late (90% chance before) | September 3 |