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

See the Poplar planting calendar →