Frost dates in National City, CA
The average last spring frost in National City is around January 24 and the first fall frost is around December 18. That gives National City an average growing season of about 329 days.
Last spring frost
| Early (10% chance after) | January 2 |
|---|---|
| Average (50%) | January 24 |
| Late (90%) | February 28 |
First fall frost
| Early (10%) | November 29 |
|---|---|
| Average (50%) | December 18 |
| Late (90% chance before) | December 25 |