Frost dates in Mount Morris, MI
The average last spring frost in Mount Morris is around May 10 and the first fall frost is around October 13. That gives Mount Morris an average growing season of about 156 days.
Last spring frost
| Early (10% chance after) | April 4 |
|---|---|
| Average (50%) | May 10 |
| Late (90%) | May 26 |
First fall frost
| Early (10%) | September 28 |
|---|---|
| Average (50%) | October 13 |
| Late (90% chance before) | October 24 |