Frost dates in Greendale, WI
The average last spring frost in Greendale is around May 8 and the first fall frost is around October 12. That gives Greendale an average growing season of about 157 days.
Last spring frost
| Early (10% chance after) | April 22 |
|---|---|
| Average (50%) | May 8 |
| Late (90%) | May 20 |
First fall frost
| Early (10%) | October 2 |
|---|---|
| Average (50%) | October 12 |
| Late (90% chance before) | October 22 |