Frost dates in Jacksonville, OR
The average last spring frost in Jacksonville is around April 25 and the first fall frost is around October 22. That gives Jacksonville an average growing season of about 180 days.
Last spring frost
| Early (10% chance after) | April 1 |
|---|---|
| Average (50%) | April 25 |
| Late (90%) | May 10 |
First fall frost
| Early (10%) | October 6 |
|---|---|
| Average (50%) | October 22 |
| Late (90% chance before) | November 9 |