Frost dates in Birch Run, MI
The average last spring frost in Birch Run is around May 4 and the first fall frost is around October 20. That gives Birch Run an average growing season of about 169 days.
Last spring frost
| Early (10% chance after) | April 24 |
|---|---|
| Average (50%) | May 4 |
| Late (90%) | May 18 |
First fall frost
| Early (10%) | October 3 |
|---|---|
| Average (50%) | October 20 |
| Late (90% chance before) | October 26 |