Frost dates in Winner, SD
The average last spring frost in Winner is around May 6 and the first fall frost is around October 5. That gives Winner an average growing season of about 152 days.
Last spring frost
| Early (10% chance after) | April 20 |
|---|---|
| Average (50%) | May 6 |
| Late (90%) | May 21 |
First fall frost
| Early (10%) | September 21 |
|---|---|
| Average (50%) | October 5 |
| Late (90% chance before) | October 24 |