Frost dates in Yountville, CA
The average last spring frost in Yountville is around March 14 and the first fall frost is around November 20. That gives Yountville an average growing season of about 251 days.
Last spring frost
| Early (10% chance after) | February 5 |
|---|---|
| Average (50%) | March 14 |
| Late (90%) | April 26 |
First fall frost
| Early (10%) | October 23 |
|---|---|
| Average (50%) | November 20 |
| Late (90% chance before) | December 6 |