Frost dates in Manistique, MI
The average last spring frost in Manistique is around May 17 and the first fall frost is around October 3. That gives Manistique an average growing season of about 139 days.
Last spring frost
| Early (10% chance after) | April 27 |
|---|---|
| Average (50%) | May 17 |
| Late (90%) | June 8 |
First fall frost
| Early (10%) | September 11 |
|---|---|
| Average (50%) | October 3 |
| Late (90% chance before) | October 22 |