Frost dates in Yoncalla, OR
The average last spring frost in Yoncalla is around April 19 and the first fall frost is around October 26. That gives Yoncalla an average growing season of about 190 days.
Last spring frost
| Early (10% chance after) | March 26 |
|---|---|
| Average (50%) | April 19 |
| Late (90%) | May 15 |
First fall frost
| Early (10%) | September 25 |
|---|---|
| Average (50%) | October 26 |
| Late (90% chance before) | November 29 |