Frost dates in Clatskanie, OR
The average last spring frost in Clatskanie is around April 19 and the first fall frost is around October 29. That gives Clatskanie an average growing season of about 193 days.
Last spring frost
| Early (10% chance after) | March 29 |
|---|---|
| Average (50%) | April 19 |
| Late (90%) | May 6 |
First fall frost
| Early (10%) | October 12 |
|---|---|
| Average (50%) | October 29 |
| Late (90% chance before) | November 20 |