Frost dates in Roseburg, OR
The average last spring frost in Roseburg is around March 31 and the first fall frost is around November 14. That gives Roseburg an average growing season of about 228 days.
Last spring frost
| Early (10% chance after) | March 4 |
|---|---|
| Average (50%) | March 31 |
| Late (90%) | April 26 |
First fall frost
| Early (10%) | October 21 |
|---|---|
| Average (50%) | November 14 |
| Late (90% chance before) | December 8 |