Montana

Storm History: Deer Lodge County, Montana

363 episodes, 429 events since 1959

Every storm the National Weather Service has filed in Deer Lodge 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
429
Deaths
10
Injuries
14
Damage
$2.1 million
Episodes
363

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 Deer Lodge 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
Heavy Snow13520$178,000
Winter Storm10835$802,000
High Wind3901$281,000
Winter Weather3730$8,000
Hail2400$18,000
Extreme Cold/Wind Chill1800
Flood1600$79,000
Blizzard1600
Thunderstorm Wind802$1,000
Flash Flood600$686,000
Cold/Wind Chill500
Tornado400
Strong Wind400$16,000
Avalanche311$500
Lightning203
Debris Flow100$600
Heavy Rain100$15,000
Frost/Freeze100
Freezing Fog112$50,000

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.

The strongest tornadoes

Every tornado in Deer Lodge County, with its track

Every episode, newest first

Earlier years, state by state:

More

Tornadoes in Deer Lodge CountyEvery warning in Deer Lodge 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.