Montana

Storm History: Sheridan County, Montana

473 episodes, 693 events since 1957

Every storm the National Weather Service has filed in Sheridan 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
693
Deaths
3
Injuries
4
Damage
$9.1 million
Episodes
473

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 Sheridan 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
Hail21801$92,000
High Wind6800$12,000
Tornado5322$340,000
Drought5200
Flash Flood5000$87,000
Blizzard4710
Extreme Cold/Wind Chill3900
Dense Fog3800
Thunderstorm Wind2600$10,000
Cold/Wind Chill2500
Winter Storm2400$2.5 million
Heavy Snow1500
Flood1100$10,000
Winter Weather1000
Ice Storm501
Wildfire300$6.0 million
Heat200
Freezing Fog200
Dust Storm200
Lightning100$10,000
Funnel Cloud100
Heavy Rain100

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 Sheridan County, with its track

Every episode, newest first

Earlier years, state by state:

More

Tornadoes in Sheridan CountyEvery warning in Sheridan 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.