Montana

Storm History: Fallon County, Montana

300 episodes, 501 events since 1952

Every storm the National Weather Service has filed in Fallon 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
501
Deaths
0
Injuries
7
Damage
$3.5 million
Episodes
300

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 Fallon 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
Hail21300$121,000
High Wind6500
Tornado5607$3.0 million
Flash Flood5600
Thunderstorm Wind2700
Blizzard2600
Winter Storm2600
Heavy Snow1600
Extreme Cold/Wind Chill600
Ice Storm300
Flood200$375,000
Cold/Wind Chill100
Heavy Rain100
Wildfire100
Drought100
Winter Weather100

The deadliest

None recorded.

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 Fallon County, with its track

Every episode, newest first

Earlier years, state by state:

More

Tornadoes in Fallon CountyEvery warning in Fallon 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.