Frost dates in Knapp, WI
The average last spring frost in Knapp is around May 12 and the first fall frost is around September 30. That gives Knapp an average growing season of about 141 days.
Last spring frost
| Early (10% chance after) | April 27 |
|---|---|
| Average (50%) | May 12 |
| Late (90%) | May 26 |
First fall frost
| Early (10%) | September 20 |
|---|---|
| Average (50%) | September 30 |
| Late (90% chance before) | October 14 |