Montana

Storm History: Teton County, Montana

254 episodes, 460 events since 1956

Every storm the National Weather Service has filed in Teton County, Montana: floods, hail, damaging wind, tornadoes, winter storms, heat and the rest, with the most serious on record. Events filed by forecast zone count for every county the zone covers.

The record

Events
460
Deaths
1
Injuries
2
Damage
$6.9 million
Episodes
254

Deaths and injuries are direct and indirect together, as the offices filed them. Damage is property and crops in the dollars of the year, not adjusted for inflation, and only where an office estimated it.

Open the live radar over Teton County

Every year

From 1996 the record holds 48 kinds of event with each office’s narrative; before that, tornadoes, hail and thunderstorm wind only, and before 1955 tornadoes alone.

By kind of event

Counted under the kind that heads each episode.

Kind of eventEventsDeathsInjuriesDamage
High Wind13112
Hail11900$80,000
Thunderstorm Wind5200$1,000
Heavy Snow3600
Winter Storm3400
Tornado3000$5.5 million
Blizzard1900$1.0 million
Flash Flood1200
Extreme Cold/Wind Chill1000
Wildfire800
Flood500$250,000
Heavy Rain300
Ice Storm100

The deadliest

The costliest

Damage within this county, in the dollars of its year.

The largest hail

The largest stone in each episode, which may have fallen in a neighboring county of the same episode.

The strongest tornadoes

Every tornado in Teton County, with its track

Every episode, newest first

Earlier years, state by state:

More

Tornadoes in Teton CountyEvery warning in Teton County since 1986Every county in Montana

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.