Frost dates in Keego Harbor, MI
The average last spring frost in Keego Harbor is around April 29 and the first fall frost is around October 17. That gives Keego Harbor an average growing season of about 171 days.
Last spring frost
| Early (10% chance after) | April 21 |
|---|---|
| Average (50%) | April 29 |
| Late (90%) | May 22 |
First fall frost
| Early (10%) | September 23 |
|---|---|
| Average (50%) | October 17 |
| Late (90% chance before) | October 26 |