Frost dates in Monroe, OR
The average last spring frost in Monroe is around April 14 and the first fall frost is around October 28. That gives Monroe an average growing season of about 197 days.
Last spring frost
| Early (10% chance after) | March 20 |
|---|---|
| Average (50%) | April 14 |
| Late (90%) | April 30 |
First fall frost
| Early (10%) | October 12 |
|---|---|
| Average (50%) | October 28 |
| Late (90% chance before) | November 22 |