Frost dates in Hartford, MI
The average last spring frost in Hartford is around April 29 and the first fall frost is around October 21. That gives Hartford an average growing season of about 175 days.
Last spring frost
| Early (10% chance after) | April 16 |
|---|---|
| Average (50%) | April 29 |
| Late (90%) | May 13 |
First fall frost
| Early (10%) | October 6 |
|---|---|
| Average (50%) | October 21 |
| Late (90% chance before) | November 4 |