Frost dates in Silverthorne, CO
The average last spring frost in Silverthorne is around July 14 and the first fall frost is around August 11. That gives Silverthorne an average growing season of about 28 days.
Last spring frost
| Early (10% chance after) | June 23 |
|---|---|
| Average (50%) | July 14 |
| Late (90%) | July 31 |
First fall frost
| Early (10%) | August 1 |
|---|---|
| Average (50%) | August 11 |
| Late (90% chance before) | September 4 |