Frost dates in Curlew, IA
The average last spring frost in Curlew is around April 29 and the first fall frost is around October 7. That gives Curlew an average growing season of about 161 days.
Last spring frost
| Early (10% chance after) | April 13 |
|---|---|
| Average (50%) | April 29 |
| Late (90%) | May 12 |
First fall frost
| Early (10%) | September 24 |
|---|---|
| Average (50%) | October 7 |
| Late (90% chance before) | October 28 |