Frost dates in Detroit, MI
The average last spring frost in Detroit is around April 21 and the first fall frost is around November 2. That gives Detroit an average growing season of about 195 days.
Last spring frost
| Early (10% chance after) | April 7 |
|---|---|
| Average (50%) | April 21 |
| Late (90%) | May 3 |
First fall frost
| Early (10%) | October 18 |
|---|---|
| Average (50%) | November 2 |
| Late (90% chance before) | November 13 |