Frost dates in Sheridan, MT
The average last spring frost in Sheridan is around June 3 and the first fall frost is around September 24. That gives Sheridan an average growing season of about 113 days.
Last spring frost
| Early (10% chance after) | May 14 |
|---|---|
| Average (50%) | June 3 |
| Late (90%) | June 20 |
First fall frost
| Early (10%) | September 8 |
|---|---|
| Average (50%) | September 24 |
| Late (90% chance before) | October 9 |