Frost dates in Houghton, MI
The average last spring frost in Houghton is around May 16 and the first fall frost is around October 1. That gives Houghton an average growing season of about 138 days.
Last spring frost
| Early (10% chance after) | May 2 |
|---|---|
| Average (50%) | May 16 |
| Late (90%) | June 2 |
First fall frost
| Early (10%) | September 15 |
|---|---|
| Average (50%) | October 1 |
| Late (90% chance before) | October 19 |