Frost dates in Alanson, MI
The average last spring frost in Alanson is around June 2 and the first fall frost is around September 14. That gives Alanson an average growing season of about 104 days.
Last spring frost
| Early (10% chance after) | May 18 |
|---|---|
| Average (50%) | June 2 |
| Late (90%) | June 21 |
First fall frost
| Early (10%) | August 22 |
|---|---|
| Average (50%) | September 14 |
| Late (90% chance before) | October 3 |