Frost dates in Colesburg, IA
The average last spring frost in Colesburg is around April 20 and the first fall frost is around October 13. That gives Colesburg an average growing season of about 176 days.
Last spring frost
| Early (10% chance after) | April 9 |
|---|---|
| Average (50%) | April 20 |
| Late (90%) | May 5 |
First fall frost
| Early (10%) | October 1 |
|---|---|
| Average (50%) | October 13 |
| Late (90% chance before) | November 1 |