Frost dates in Chatham, MI
The average last spring frost in Chatham is around June 1 and the first fall frost is around September 28. That gives Chatham an average growing season of about 119 days.
Last spring frost
| Early (10% chance after) | May 18 |
|---|---|
| Average (50%) | June 1 |
| Late (90%) | June 24 |
First fall frost
| Early (10%) | September 6 |
|---|---|
| Average (50%) | September 28 |
| Late (90% chance before) | October 9 |