Frost dates in Hot Springs, SD
The average last spring frost in Hot Springs is around May 16 and the first fall frost is around September 23. That gives Hot Springs an average growing season of about 130 days.
Last spring frost
| Early (10% chance after) | May 1 |
|---|---|
| Average (50%) | May 16 |
| Late (90%) | May 30 |
First fall frost
| Early (10%) | September 10 |
|---|---|
| Average (50%) | September 23 |
| Late (90% chance before) | October 8 |