Frost/Freeze in Idaho
Every frost/freeze event the National Weather Service has filed in Idaho, year by year, with the most significant episodes. Frost or temperatures at or below freezing during the growing season, usually filed for crop damage.
The most significant on the map
The most significant frost/freeze episodes in Idaho.
- Tornadoes
- Tropical storms and surge
- Floods
- Wind
- Hail
- Winter weather
- Heat and drought
- Cold
- Fire, smoke and dust
- Marine and coastal
- Other
The record
- Events
- 21
- Deaths
- 1
- Injuries
- 1
- Damage
- None recorded
Every year
The most significant
Ranked by deaths, injuries, damage and size together.
- Frost and Freeze in Idaho, October 26, 2013Frost was able to form over area bridges on U.S. Highway 12 causing slippery conditions for which a motorcyclist lost control and died.
- Frost and Freeze in Idaho, September 30, 2024The first widespread freezing temperatures of the fall season occurred both mornings.
- Winter Weather and Frost and Freeze in Idaho, May 16 to 19, 2026An unseasonably cold upper-level trough, originally an Aleutian Low/Gulf of Alaska low, sagged south over the Pacific Northwest and Northern Rockies and brought a prolonged period of late-season winter weather, including accumulating mountain snow and unseasonably cold…
- Frost and Freeze in Idaho, April 25 to 27, 2026An unseasonably cold airmass, originating from central Canada, brought record and near-record cold temperatures to the region. A deep and cold upper low pinched off and became centered over southern Saskatchewan and Montana during the period.
- Frost and Freeze in Idaho, May 10, 2006Widespread sub freezing temperatures were reported in the Snake River Plain during the early morning hours of May 10th including 31 at Pocatello, 26 at Idaho Falls and 23 at Rexburg.
- Frost and Freeze in Idaho, October 12, 2016After the passage of an Arctic air mass on Monday, clearing skies and light winds led to the first hard freeze of the season for many areas in north central Idaho.
- Frost and Freeze in Idaho, April 28, 2019Sub-freezing temperatures occurred in central Idaho therefore compromising sensitive vegetation such as flowering fruit trees.
- Frost and Freeze in Idaho, September 8, 2020An unseasonably cold airmass lead to an early fall freeze.
- Frost and Freeze in Idaho, October 4, 2012Cold Dry air moved into SW Idaho behind a cold front. This combined with clear skies and calm winds allowed temperatures to drop below freezing. This freeze marked the end of the growing season.
- Frost and Freeze in Idaho, September 24, 2017Sub-freezing temperatures were reported in the Salmon area which is the largest population center in Lemhi County, Idaho.
- Frost and Freeze in Idaho, September 22 to 23, 2025High pressure brought clear skies and dry air, and this allowed overnight temperatures to drop near freezing.
More
Sources
NOAA National Centers for Environmental Information, Storm Events Database, compiled from the National Weather Service’s monthly Storm Data. Complete through 2026-06; NCEI adds each month about 75 days after it ends and revises past years a few times a year. Rebuilt 2026-09-24.