Frost dates in Monument, OR
The average last spring frost in Monument is around May 18 and the first fall frost is around September 22. That gives Monument an average growing season of about 127 days.
Last spring frost
| Early (10% chance after) | April 30 |
|---|---|
| Average (50%) | May 18 |
| Late (90%) | June 4 |
First fall frost
| Early (10%) | September 12 |
|---|---|
| Average (50%) | September 22 |
| Late (90% chance before) | October 8 |