Average First Frost Dates for Idaho

About First Frost Dates in Idaho

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

Map List Related Pages

Interactive Map of Average First Frost Dates for Idaho

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 First Frost Dates for Locations in Idaho

LocationAverage First Frost Dates
AmmonSeptember 11 - 20
BlackfootSeptember 11 - 20
BoiseOctober 11 - 20
BurleyOctober 1 - 10
CaldwellOctober 1 - 10
ChubbuckSeptember 11 - 20
Coeur d'AleneOctober 1 - 10
EagleOctober 11 - 20
EmmettOctober 11 - 20
FruitlandOctober 11 - 20
Garden CityOctober 11 - 20
HaileySeptember 11 - 20
HaydenSeptember 21 - 30
Idaho FallsSeptember 11 - 20
JeromeOctober 1 - 10
KunaOctober 11 - 20
LewistonOctober 21 - 31
MeridianOctober 11 - 20
MiddletonOctober 11 - 20
MoscowSeptember 11 - 20
Mountain HomeOctober 1 - 10
NampaOctober 11 - 20
PayetteOctober 11 - 20
PocatelloSeptember 11 - 20
Post FallsOctober 11 - 20
PrestonSeptember 21 - 30
RathdrumOctober 1 - 10
RexburgSeptember 11 - 20
RigbySeptember 11 - 20
RupertOctober 1 - 10
SandpointOctober 1 - 10
StarOctober 11 - 20
Twin FallsOctober 1 - 10
WeiserOctober 21 - 31

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