Frost dates in North Powder, OR
The average last spring frost in North Powder is around May 22 and the first fall frost is around September 25. That gives North Powder an average growing season of about 126 days.
Last spring frost
| Early (10% chance after) | May 7 |
|---|---|
| Average (50%) | May 22 |
| Late (90%) | June 13 |
First fall frost
| Early (10%) | September 18 |
|---|---|
| Average (50%) | September 25 |
| Late (90% chance before) | November 2 |