Frost dates in Ouray, CO
The average last spring frost in Ouray is around May 23 and the first fall frost is around October 7. That gives Ouray an average growing season of about 137 days.
Last spring frost
| Early (10% chance after) | May 4 |
|---|---|
| Average (50%) | May 23 |
| Late (90%) | June 2 |
First fall frost
| Early (10%) | September 21 |
|---|---|
| Average (50%) | October 7 |
| Late (90% chance before) | October 22 |