Frost dates in Tillamook, OR
The average last spring frost in Tillamook is around May 4 and the first fall frost is around October 11. That gives Tillamook an average growing season of about 160 days.
Last spring frost
| Early (10% chance after) | April 10 |
|---|---|
| Average (50%) | May 4 |
| Late (90%) | May 24 |
First fall frost
| Early (10%) | September 22 |
|---|---|
| Average (50%) | October 11 |
| Late (90% chance before) | November 8 |