Frost dates in Colo, IA
The average last spring frost in Colo is around April 29 and the first fall frost is around October 6. That gives Colo an average growing season of about 160 days.
Last spring frost
| Early (10% chance after) | April 11 |
|---|---|
| Average (50%) | April 29 |
| Late (90%) | May 9 |
First fall frost
| Early (10%) | September 23 |
|---|---|
| Average (50%) | October 6 |
| Late (90% chance before) | October 18 |