Frost dates in Ashland, WI
The average last spring frost in Ashland is around May 18 and the first fall frost is around October 1. That gives Ashland an average growing season of about 136 days.
Last spring frost
| Early (10% chance after) | May 1 |
|---|---|
| Average (50%) | May 18 |
| Late (90%) | May 29 |
First fall frost
| Early (10%) | September 20 |
|---|---|
| Average (50%) | October 1 |
| Late (90% chance before) | October 11 |