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.
AvalancheMarch 10, 2014
Bitterroot / Sapphire Mountains · 1 killed ·
Winter StormFebruary 23, 2014
Yellowstone · 1 killed ·
AvalancheFebruary 22, 2014
Kootenai/Cabinet Region · 1 killed ·
AvalancheJanuary 1, 2014
Gallatin · 1 killed ·
AvalancheFebruary 22, 2012
Absarokee / Beartooth Mountains · 1 killed ·
AvalancheDecember 31, 2011
Absarokee / Beartooth Mountains · 1 killed ·
LightningJune 11, 2011
Carbon · 1 killed ·
Flash FloodMay 24, 2011
Big Horn · 1 killed ·
AvalancheDecember 29, 2010
Bitterroot / Sapphire Mountains · 1 killed · 1 injured ·
Extreme Cold/Wind ChillDecember 24, 2009
Wibaux · 1 killed ·
LightningJuly 4, 2009
Yellowstone · 1 killed ·
Winter WeatherFebruary 19, 2009
Southern Big Horn · 1 killed · 1 injured ·
LightningMay 18, 2007
Broadwater · 1 killed ·
High WindDecember 13, 2006
Gallatin · 1 killed ·
Cold/Wind ChillFebruary 6, 2005
Eastern Roosevelt · 1 killed ·
Winter WeatherJanuary 7, 2004
Flathead/Mission Valleys · 1 killed · 6 injured ·
BlizzardFebruary 15, 2001
Blackfoot Region · 1 killed · 2 injured ·
Dust StormSeptember 9, 2000
Blackfoot Region · 1 killed · 8 injured ·
Thunderstorm WindJuly 22, 2000
Flathead · 1 killed · 1 injured ·
AvalancheNovember 26, 1999
Gallatin / Madison · 1 killed ·
LightningJuly 17, 1999
Big Horn · 1 killed ·
LightningJune 25, 1999
Custer · 1 killed ·
LightningJune 17, 1999
Gallatin · 1 killed ·
Heavy SnowFebruary 9, 1999
Missoula / Bitterroot Valleys · 1 killed ·
AvalancheNovember 15, 1998
Beaverhead · 1 killed ·
LightningSeptember 18, 1998
Petroleum · 1 killed · 1 injured ·
LightningJuly 8, 1998
Missoula · 1 killed · 1 injured ·
BlizzardFebruary 25, 1998
Sheridan · 1 killed ·
AvalancheJanuary 18, 1998
Gallatin/Madison · 1 killed ·
Cold/Wind ChillJanuary 8, 1997
Western Roosevelt · 1 killed ·
Winter StormDecember 20, 1996
Bitterroot / Sapphire Mountains · 1 killed ·
Winter StormNovember 18, 1996
Lower Clark Fork Region · 1 killed · 1 injured ·
Winter StormNovember 18, 1996
Kootenai/Cabinet Region · 1 killed ·
FloodMay 16, 1996
Ravalli · 1 killed ·
Cold/Wind ChillFebruary 1, 1996
Beaverhead · 1 killed ·
Cold/Wind ChillJanuary 28, 1996
Lower Clark Fork Region · 1 killed ·
HailJune 30, 2010
Gallatin · $60.0M damage
FloodDecember 11, 2025
Lincoln · $31.0M damage
Tornado (EF2)June 20, 2010
Yellowstone · $30.0M damage
Tornado (EF3)June 11, 2016
Fallon · 7 injured · $1.5M damage
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.