Frost dates in Siletz, OR
The average last spring frost in Siletz is around March 17 and the first fall frost is around November 24. That gives Siletz an average growing season of about 252 days.
Last spring frost
| Early (10% chance after) | January 22 |
|---|---|
| Average (50%) | March 17 |
| Late (90%) | April 7 |
First fall frost
| Early (10%) | November 2 |
|---|---|
| Average (50%) | November 24 |
| Late (90% chance before) | December 16 |