Frost dates in South Fork, CO
The average last spring frost in South Fork is around June 11 and the first fall frost is around September 14. That gives South Fork an average growing season of about 95 days.
Last spring frost
| Early (10% chance after) | May 31 |
|---|---|
| Average (50%) | June 11 |
| Late (90%) | June 26 |
First fall frost
| Early (10%) | August 27 |
|---|---|
| Average (50%) | September 14 |
| Late (90% chance before) | September 26 |