Frost dates in Monument, CO
The average last spring frost in Monument is around May 18 and the first fall frost is around October 3. That gives Monument an average growing season of about 138 days.
Last spring frost
| Early (10% chance after) | May 5 |
|---|---|
| Average (50%) | May 18 |
| Late (90%) | May 24 |
First fall frost
| Early (10%) | September 14 |
|---|---|
| Average (50%) | October 3 |
| Late (90% chance before) | October 10 |