Frost dates in Whitewood, SD
The average last spring frost in Whitewood is around May 30 and the first fall frost is around September 18. That gives Whitewood an average growing season of about 111 days.
Last spring frost
| Early (10% chance after) | May 14 |
|---|---|
| Average (50%) | May 30 |
| Late (90%) | June 19 |
First fall frost
| Early (10%) | September 5 |
|---|---|
| Average (50%) | September 18 |
| Late (90% chance before) | September 28 |