Frost dates in Irvine, CA
The average last spring frost in Irvine is around February 19 and the first fall frost is around December 5. That gives Irvine an average growing season of about 290 days.
Last spring frost
| Early (10% chance after) | January 14 |
|---|---|
| Average (50%) | February 19 |
| Late (90%) | March 30 |
First fall frost
| Early (10%) | November 7 |
|---|---|
| Average (50%) | December 5 |
| Late (90% chance before) | December 24 |