Frost dates in Shawano, WI
The average last spring frost in Shawano is around May 15 and the first fall frost is around September 27. That gives Shawano an average growing season of about 135 days.
Last spring frost
| Early (10% chance after) | May 1 |
|---|---|
| Average (50%) | May 15 |
| Late (90%) | May 30 |
First fall frost
| Early (10%) | September 15 |
|---|---|
| Average (50%) | September 27 |
| Late (90% chance before) | October 13 |