Frost dates in Port Hope, MI
The average last spring frost in Port Hope is around May 1 and the first fall frost is around October 21. That gives Port Hope an average growing season of about 173 days.
Last spring frost
| Early (10% chance after) | April 24 |
|---|---|
| Average (50%) | May 1 |
| Late (90%) | May 12 |
First fall frost
| Early (10%) | October 8 |
|---|---|
| Average (50%) | October 21 |
| Late (90% chance before) | November 4 |