Montana Storm & Severe Weather History
Since 1996, Montana has logged 34,011 severe-weather events — about 1,097 a year — with 89 direct deaths, 245 injuries and $328.0M in reported property damage.
By event type
High Wind7,6704 d$10.0M
Hail7,310—$95.6M
Thunderstorm Wind5,7178 d$34.5M
Winter Storm3,6267 d$21.0M
Heavy Snow3,2682 d$2.9M
Winter Weather84613 d$545K
Drought788——
Extreme Cold/Wind Chill7041 d—
Flood6958 d$72.8M
Blizzard6423 d$3.4M
Flash Flood4731 d$18.7M
Heavy Rain467—$49K
Cold/Wind Chill3494 d$2K
Dense Fog291——
Wildfire2691 d$26.1M
Funnel Cloud207——
Events by year
19962026
Notable events (81)
Events with deaths, major damage, or a strong tornado — deadliest first.
FloodJune 4, 1996
West Glacier Region · 3 killed ·
Tornado (EF3)July 26, 2010
Sheridan · 2 killed · 1 injured · $300K damage
FloodMay 17, 2023
Cascade · 2 killed · $60K damage
Winter StormNovember 9, 2012
Wibaux · 2 killed · 1 injured · $25K damage
Winter WeatherJanuary 30, 2020
Southern Rosebud · 2 killed · 2 injured ·
AvalancheJanuary 1, 2020
Potomac / Seeley Lake Region · 2 killed ·
Winter WeatherFebruary 19, 2009
Southern Rosebud · 2 killed ·
Thunderstorm WindJuly 16, 2008
Big Horn · 2 killed ·
AvalancheJanuary 13, 2008
West Glacier Region · 2 killed · 1 injured ·
AvalancheJanuary 14, 2006
West Glacier Region · 2 killed ·
High WindJanuary 12, 2002
Cascade · 2 killed · 4 injured ·
Ice StormNovember 19, 1997
Sc Missoula/C&Nc Ravalli · 2 killed ·
FloodMay 20, 2011
Carbon · 1 killed · $1.0M damage
AvalancheFebruary 28, 2014
Missoula / Bitterroot Valleys · 1 killed · 2 injured · $319K damage
FloodMay 21, 2011
Yellowstone · 1 killed · $300K damage
Thunderstorm WindJuly 10, 1998
Missoula · 1 killed · $260K damage
Thunderstorm WindJune 16, 2010
Roosevelt · 1 killed · 1 injured · $250K damage
BlizzardDecember 12, 2008
Flathead/Mission Valleys · 1 killed · $200K damage
High WindJuly 14, 2025
Flathead/Mission Valleys · 1 killed · $16K damage
Heavy SnowSeptember 13, 2017
Lower Clark Fork Region · 1 killed · 1 injured · $1K damage
AvalancheJanuary 6, 2012
Butte / Blackfoot Region · 1 killed · 1 injured · $500 damage
Winter WeatherNovember 23, 2023
Eastern Pondera And Eastern Teton · 1 killed · 2 injured ·
Winter WeatherOctober 25, 2023
Southeastern Carbon · 1 killed · 2 injured ·
Winter WeatherMarch 2, 2023
Missoula / Bitterroot Valleys · 1 killed ·
Winter WeatherJanuary 22, 2023
Missoula / Bitterroot Valleys · 1 killed ·
AvalancheDecember 31, 2022
Absaroka / Beartooth Mountains · 1 killed ·
Thunderstorm WindJuly 15, 2022
Big Horn · 1 killed · 6 injured ·
AvalancheFebruary 19, 2022
Absaroka / Beartooth Mountains · 1 killed · 1 injured ·
AvalancheFebruary 6, 2022
Gallatin · 1 killed ·
Thunderstorm WindAugust 16, 2021
Big Horn · 1 killed ·
WildfireJuly 16, 2021
Northern Carbon · 1 killed · 1 injured ·
LightningJuly 31, 2020
Dawson · 1 killed ·
Winter WeatherNovember 5, 2019
Northern Sweet Grass · 1 killed ·
Winter WeatherApril 28, 2019
Southern Lewis And Clark · 1 killed · 5 injured ·
Excessive HeatJune 26, 2018
Dawson · 1 killed ·
AvalancheDecember 11, 2016
Absarokee / Beartooth Mountains · 1 killed ·
Winter StormOctober 11, 2016
Gallatin · 1 killed ·
Thunderstorm WindJuly 6, 2016
Custer · 1 killed · 1 injured ·
AvalancheDecember 19, 2015
Absarokee / Beartooth Mountains · 1 killed ·
Winter WeatherDecember 4, 2014
Flathead/Mission Valleys · 1 killed ·
Source: NOAA/NCEI Storm Events Database. Counts are every logged event since 1996; the "notable" list is filtered to events with fatalities, major damage or a strong tornado. Damage is the reporting office's estimate. A record of past weather is not a forecast. See About the Data.