Average Last Frost Dates for Montana

About Last Frost Dates in Montana

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

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Interactive Map of Average Last Frost Dates for Montana

Click on the map for more information. Click on the icon in the lower right to view the map legend. Add additional data layers using the icon in the upper right corner.

List of Average Last Frost Dates for Locations in Montana

LocationAverage Last Frost Dates
AnacondaMay 21 - 31
BelgradeJune 11 - 20
BigforkMay 11 - 20
BillingsMay 11 - 20
BozemanJune 1 - 10
ButteJune 21 - 30
Columbia FallsJune 1 - 10
EvergreenJune 1 - 10
Four CornersJune 1 - 10
Great FallsMay 21 - 31
HavreMay 21 - 31
HelenaMay 21 - 31
KalispellJune 1 - 10
LaurelMay 11 - 20
LewistownMay 21 - 31
LivingstonJune 1 - 10
LockwoodMay 11 - 20
Miles CityMay 11 - 20
MissoulaMay 21 - 31
Orchard HomesMay 21 - 31
PolsonMay 21 - 31
SidneyMay 21 - 31
WhitefishJune 1 - 10

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