Frost dates in Oroville, CA
The average last spring frost in Oroville is around February 20 and the first fall frost is around November 27. That gives Oroville an average growing season of about 281 days.
Last spring frost
| Early (10% chance after) | January 14 |
|---|---|
| Average (50%) | February 20 |
| Late (90%) | April 8 |
First fall frost
| Early (10%) | November 6 |
|---|---|
| Average (50%) | November 27 |
| Late (90% chance before) | December 20 |