Frost dates in Poplar, MT
The average last spring frost in Poplar is around May 19 and the first fall frost is around September 14. That gives Poplar an average growing season of about 118 days.
Last spring frost
| Early (10% chance after) | May 7 |
|---|---|
| Average (50%) | May 19 |
| Late (90%) | June 5 |
First fall frost
| Early (10%) | September 5 |
|---|---|
| Average (50%) | September 14 |
| Late (90% chance before) | September 30 |