Montana

Storm History: Gallatin County, Montana

253 episodes, 456 events since 1958

Every storm the National Weather Service has filed in Gallatin 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
456
Deaths
1
Injuries
7
Damage
$62 million
Episodes
253

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 Gallatin 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
Hail11700$60 million
Heavy Snow7400
Thunderstorm Wind6800$28,000
Winter Storm4701$150,000
High Wind4300
Wildfire2006$320,000
Flash Flood1900
Extreme Cold/Wind Chill1900
Blizzard1500
Tornado1300$3,000
Flood1100$1.0 million
Avalanche300
Winter Weather300
Funnel Cloud200
Lightning110
Dust Devil100$3,000

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.

Every episode, newest first

Earlier years, state by state:

More

Tornadoes in Gallatin CountyEvery warning in Gallatin 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.