Frost dates in Ripon, WI
The average last spring frost in Ripon is around April 29 and the first fall frost is around October 10. That gives Ripon an average growing season of about 164 days.
Last spring frost
| Early (10% chance after) | March 21 |
|---|---|
| Average (50%) | April 29 |
| Late (90%) | May 11 |
First fall frost
| Early (10%) | October 1 |
|---|---|
| Average (50%) | October 10 |
| Late (90% chance before) | October 24 |