Frost dates in Grandville, MI
The average last spring frost in Grandville is around May 1 and the first fall frost is around October 18. That gives Grandville an average growing season of about 170 days.
Last spring frost
| Early (10% chance after) | April 27 |
|---|---|
| Average (50%) | May 1 |
| Late (90%) | May 15 |
First fall frost
| Early (10%) | October 8 |
|---|---|
| Average (50%) | October 18 |
| Late (90% chance before) | October 26 |