Frost dates in Gruver, IA
The average last spring frost in Gruver is around April 30 and the first fall frost is around October 3. That gives Gruver an average growing season of about 156 days.
Last spring frost
| Early (10% chance after) | April 18 |
|---|---|
| Average (50%) | April 30 |
| Late (90%) | May 16 |
First fall frost
| Early (10%) | September 19 |
|---|---|
| Average (50%) | October 3 |
| Late (90% chance before) | October 15 |