Frost dates in Northport, MI
The average last spring frost in Northport is around May 10 and the first fall frost is around October 29. That gives Northport an average growing season of about 172 days.
Last spring frost
| Early (10% chance after) | May 1 |
|---|---|
| Average (50%) | May 10 |
| Late (90%) | May 20 |
First fall frost
| Early (10%) | October 14 |
|---|---|
| Average (50%) | October 29 |
| Late (90% chance before) | November 9 |