Frost dates in Wentworth, SD
The average last spring frost in Wentworth is around May 11 and the first fall frost is around September 28. That gives Wentworth an average growing season of about 140 days.
Last spring frost
| Early (10% chance after) | April 25 |
|---|---|
| Average (50%) | May 11 |
| Late (90%) | May 28 |
First fall frost
| Early (10%) | September 17 |
|---|---|
| Average (50%) | September 28 |
| Late (90% chance before) | October 13 |