Frost dates in Colusa, CA
The average last spring frost in Colusa is around March 5 and the first fall frost is around November 18. That gives Colusa an average growing season of about 258 days.
Last spring frost
| Early (10% chance after) | January 14 |
|---|---|
| Average (50%) | March 5 |
| Late (90%) | April 17 |
First fall frost
| Early (10%) | November 2 |
|---|---|
| Average (50%) | November 18 |
| Late (90% chance before) | December 7 |