Frost dates in Wallowa, OR
The average last spring frost in Wallowa is around June 12 and the first fall frost is around September 1. That gives Wallowa an average growing season of about 81 days.
Last spring frost
| Early (10% chance after) | May 15 |
|---|---|
| Average (50%) | June 12 |
| Late (90%) | July 12 |
First fall frost
| Early (10%) | August 10 |
|---|---|
| Average (50%) | September 1 |
| Late (90% chance before) | September 18 |