Frost dates in Philipsburg, MT
The average last spring frost in Philipsburg is around June 30 and the first fall frost is around August 28. That gives Philipsburg an average growing season of about 59 days.
Last spring frost
| Early (10% chance after) | June 10 |
|---|---|
| Average (50%) | June 30 |
| Late (90%) | July 22 |
First fall frost
| Early (10%) | August 7 |
|---|---|
| Average (50%) | August 28 |
| Late (90% chance before) | September 15 |