Frost dates in Delta, CO
The average last spring frost in Delta is around May 1 and the first fall frost is around October 9. That gives Delta an average growing season of about 161 days.
Last spring frost
| Early (10% chance after) | April 18 |
|---|---|
| Average (50%) | May 1 |
| Late (90%) | May 14 |
First fall frost
| Early (10%) | September 25 |
|---|---|
| Average (50%) | October 9 |
| Late (90% chance before) | October 23 |