Frost dates in Casco, WI
The average last spring frost in Casco is around May 5 and the first fall frost is around October 13. That gives Casco an average growing season of about 161 days.
Last spring frost
| Early (10% chance after) | April 19 |
|---|---|
| Average (50%) | May 5 |
| Late (90%) | May 20 |
First fall frost
| Early (10%) | September 28 |
|---|---|
| Average (50%) | October 13 |
| Late (90% chance before) | November 2 |