Frost dates in San Jose, CA
The average last spring frost in San Jose is around January 18 and the first fall frost is around December 19. That gives San Jose an average growing season of about 336 days.
Last spring frost
| Early (10% chance after) | January 3 |
|---|---|
| Average (50%) | January 18 |
| Late (90%) | February 21 |
First fall frost
| Early (10%) | November 29 |
|---|---|
| Average (50%) | December 19 |
| Late (90% chance before) | December 22 |