Frost dates in Lake Delton, WI
The average last spring frost in Lake Delton is around May 12 and the first fall frost is around October 2. That gives Lake Delton an average growing season of about 143 days.
Last spring frost
| Early (10% chance after) | April 26 |
|---|---|
| Average (50%) | May 12 |
| Late (90%) | May 28 |
First fall frost
| Early (10%) | September 20 |
|---|---|
| Average (50%) | October 2 |
| Late (90% chance before) | October 15 |