Montana

Storm History: Fergus County, Montana

435 episodes, 722 events since 1956

Every storm the National Weather Service has filed in Fergus 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
722
Deaths
0
Injuries
3
Damage
$7.0 million
Episodes
435

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 Fergus 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
Hail31300$2.0 million
Thunderstorm Wind11500$80,000
High Wind10000
Tornado5303$4.4 million
Heavy Snow3200
Blizzard3100$388,000
Winter Storm2400
Flood1500$135,000
Heavy Rain1100
Flash Flood1000$2,000
Extreme Cold/Wind Chill1000
Funnel Cloud400
Ice Storm300
Wildfire100

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 Fergus County, with its track

Every episode, newest first

Earlier years, state by state:

More

Tornadoes in Fergus CountyEvery warning in Fergus 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.