Average Last Frost Dates for Montana

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Last Frost Dates were calculated using daily climate data from the period between 1991-2020.

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List of Average Last Frost Dates for Locations in Montana

LocationAverage Last Frost Dates
AnacondaJun. 1 - Jun. 10
BelgradeJun. 11 - Jun. 20
BigforkMay 21 - May 31
BillingsMay 11 - May 20
BozemanJun. 1 - Jun. 10
ButteJun. 21 - Jun. 30
Columbia FallsJun. 1 - Jun. 10
EvergreenMay 21 - May 31
Four CornersJun. 1 - Jun. 10
Great FallsMay 21 - May 31
HavreMay 21 - May 31
HelenaMay 21 - May 31
KalispellJun. 1 - Jun. 10
LaurelMay 11 - May 20
LewistownMay 21 - May 31
LivingstonMay 21 - May 31
LockwoodMay 11 - May 20
Miles CityMay 11 - May 20
MissoulaMay 21 - May 31
Orchard HomesMay 21 - May 31
PolsonMay 21 - May 31
SidneyMay 21 - May 31
WhitefishJun. 1 - Jun. 10

Maps for Neighboring Areas

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