Frost dates in Hot Springs, MT
The average last spring frost in Hot Springs is around May 13 and the first fall frost is around October 1. That gives Hot Springs an average growing season of about 141 days.
Last spring frost
| Early (10% chance after) | April 29 |
|---|---|
| Average (50%) | May 13 |
| Late (90%) | May 28 |
First fall frost
| Early (10%) | September 15 |
|---|---|
| Average (50%) | October 1 |
| Late (90% chance before) | October 14 |