Frost dates in Port Huron, MI
The average last spring frost in Port Huron is around April 27 and the first fall frost is around October 22. That gives Port Huron an average growing season of about 178 days.
Last spring frost
| Early (10% chance after) | April 13 |
|---|---|
| Average (50%) | April 27 |
| Late (90%) | May 16 |
First fall frost
| Early (10%) | October 4 |
|---|---|
| Average (50%) | October 22 |
| Late (90% chance before) | November 10 |