Frost dates in Gillett Grove, IA
The average last spring frost in Gillett Grove is around May 3 and the first fall frost is around October 1. That gives Gillett Grove an average growing season of about 151 days.
Last spring frost
| Early (10% chance after) | April 15 |
|---|---|
| Average (50%) | May 3 |
| Late (90%) | May 16 |
First fall frost
| Early (10%) | September 20 |
|---|---|
| Average (50%) | October 1 |
| Late (90% chance before) | October 16 |