Frost dates in Hortonville, WI
The average last spring frost in Hortonville is around May 10 and the first fall frost is around September 30. That gives Hortonville an average growing season of about 143 days.
Last spring frost
| Early (10% chance after) | April 25 |
|---|---|
| Average (50%) | May 10 |
| Late (90%) | May 27 |
First fall frost
| Early (10%) | September 19 |
|---|---|
| Average (50%) | September 30 |
| Late (90% chance before) | October 14 |