Frost dates in Clayton, CA
The average last spring frost in Clayton is around March 26 and the first fall frost is around November 30. That gives Clayton an average growing season of about 249 days.
Last spring frost
| Early (10% chance after) | February 11 |
|---|---|
| Average (50%) | March 26 |
| Late (90%) | April 24 |
First fall frost
| Early (10%) | November 12 |
|---|---|
| Average (50%) | November 30 |
| Late (90% chance before) | December 23 |