Frost dates in Caspian, MI
The average last spring frost in Caspian is around June 6 and the first fall frost is around September 10. That gives Caspian an average growing season of about 96 days.
Last spring frost
| Early (10% chance after) | May 20 |
|---|---|
| Average (50%) | June 6 |
| Late (90%) | June 29 |
First fall frost
| Early (10%) | August 17 |
|---|---|
| Average (50%) | September 10 |
| Late (90% chance before) | September 23 |