Frost dates in Corvallis, OR
The average last spring frost in Corvallis is around April 24 and the first fall frost is around October 28. That gives Corvallis an average growing season of about 187 days.
Last spring frost
| Early (10% chance after) | March 23 |
|---|---|
| Average (50%) | April 24 |
| Late (90%) | May 12 |
First fall frost
| Early (10%) | October 6 |
|---|---|
| Average (50%) | October 28 |
| Late (90% chance before) | November 17 |