Storm History: Lewis and Clark County, Montana

Events

670

Deaths

0

Injuries

14

Damage

$6.9 million

Episodes

338

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 Lewis and Clark County

None recorded.

• Wildfire, July 23, 20002 injured · $2.5 million · 1 event here
• Wildfire, August 1, 20002 injured · $2.5 million · 1 event here
• Blizzard, December 7, 2022$1.0 million · 1 event here
• Flash Flood, July 2, 2022$700,000 · 61 kt wind · 14 events here
• Flood, April 7, 2023$100,000 · 1 event here
• Flash Flood, July 20, 2012$55,000 · 2 events here
• Flash Flood, July 31, 2025$11,000 · 1 in hail · 1 event here
• Thunderstorm Wind, July 13, 2000$10,000 · 70 kt wind · 1 event here
• Thunderstorm Wind, June 20, 2003$10,000 · 61 kt wind · 1 event here
• Flash Flood, May 27, 2001$5,000 · 1 event here
• Tornado, June 5, 2023$5,000 · 1 in hail · 3 events here
• Flash Flood, August 5, 1999$4,000 · 1 event here
• Tornado, June 27, 1997$2,000 · F0 · 1 event here
• Hail, August 7, 1999$2,000 · 2 in hail · 1 event here
• Dust Devil, May 1, 2008$1,000 · 1 event here
• Thunderstorm Wind, September 14, 2025$1,000 · 56 kt wind · 2 events here

• Hail, May 30, 19663.5 in hail · 1 event here
• Hail, June 6, 19973 in hail · 3 events here
• Hail, July 1, 19753 in hail · 1 event here
• Hail, July 3, 19753 in hail · 1 event here
• Hail, June 4, 20122.75 in hail · 1 event here
• Hail, June 15, 19952.5 in hail · 1 event here
• Hail, June 29, 19822.5 in hail · 1 event here
• Hail, August 10, 20192 in hail · 2 events here
• Hail, September 5, 20132 in hail · 1 event here
• Hail, July 19, 20102 in hail · 1 event here
• Hail, August 7, 1999$2,000 · 2 in hail · 1 event here
• Hail, June 25, 19962 in hail · 1 event here
• Hail, July 3, 20201.75 in hail · 1 event here
• Hail, August 15, 20141.75 in hail · 2 events here
• Flash Flood, June 17, 20131.75 in hail · 1 event here

• Tornado, July 5, 1988F3 · 1 event here
• Tornado, June 30, 1975F2 · 2 events here

Every tornado in Lewis and Clark County, with its track

• Hail, June 25, 20261.5 in hail · 3 events here
• High Wind, June 16, 202661 kt wind · 1 event here
• Thunderstorm Wind, May 13, 202677 kt wind · 4 events here
• High Wind, April 7, 202668 kt wind · 3 events here
• High Wind, March 25, 202668 kt wind · 1 event here
• High Wind, March 19, 202692 kt wind · 2 events here
• High Wind, March 19, 202674 kt wind · 2 events here
• High Wind, March 18, 202665 kt wind · 2 events here
• High Wind, March 16, 202668 kt wind · 4 events here
• Blizzard, March 11, 202685 kt wind · 2 events here
• Blizzard, March 11, 202682 kt wind · 12 events here
• Wildfire, March 8, 20261 event here
• High Wind, March 7, 202673 kt wind · 7 events here
• High Wind, February 25, 202668 kt wind · 3 events here
• High Wind, February 25, 202683 kt wind · 4 events here
• High Wind, February 7, 202664 kt wind · 2 events here
• High Wind, January 30, 202669 kt wind · 2 events here
• High Wind, January 11, 202677 kt wind · 3 events here
• High Wind, January 10, 202660 kt wind · 1 event here
• High Wind, January 6, 202670 kt wind · 2 events here
• Extreme Cold/Wind Chill, December 27, 20252 events here
• High Wind, December 18, 202570 kt wind · 3 events here
• High Wind, December 17, 202590 kt wind · 7 events here
• High Wind, December 15, 202582 kt wind · 3 events here
• Ice Storm, December 11, 20251 event here
• High Wind, December 10, 202565 kt wind · 4 events here
• High Wind, December 8, 202574 kt wind · 5 events here
• Heavy Snow, December 4, 20251 event here
• Heavy Snow, November 24, 202556 kt wind · 1 event here
• High Wind, November 13, 202577 kt wind · 1 event here
• High Wind, November 10, 202581 kt wind · 2 events here
• High Wind, November 7, 202565 kt wind · 1 event here
• High Wind, November 1, 202563 kt wind · 2 events here
• High Wind, October 29, 202575 kt wind · 2 events here
• High Wind, October 19, 202565 kt wind · 2 events here
• Heavy Snow, October 12, 20252 events here
• Thunderstorm Wind, September 14, 2025$1,000 · 56 kt wind · 2 events here
• Wildfire, August 19, 20251 event here
• Flash Flood, July 31, 2025$11,000 · 1 in hail · 1 event here
• Thunderstorm Wind, July 1, 202564 kt wind · 2 events here
• Wildfire, June 9, 20251 event here
• Thunderstorm Wind, May 29, 202553 kt wind · 1 event here
• Thunderstorm Wind, May 10, 202560 kt wind · 2 events here
• Heavy Snow, April 1, 20255 events here
• High Wind, March 8, 202570 kt wind · 2 events here
• High Wind, February 22, 202568 kt wind · 1 event here
• Winter Storm, February 15, 20254 events here
• Extreme Cold/Wind Chill, February 10, 20256 events here
• Winter Storm, February 6, 20251 event here
• Extreme Cold/Wind Chill, February 2, 20254 events here
• Heavy Snow, February 1, 20251 event here
• High Wind, January 16, 202572 kt wind · 2 events here
• Heavy Snow, January 10, 202566 kt wind · 1 event here
• High Wind, January 7, 202570 kt wind · 1 event here
• Heavy Snow, January 3, 20254 events here
• Heavy Snow, December 29, 20241 event here
• High Wind, December 18, 202483 kt wind · 6 events here
• Heavy Snow, December 6, 202467 kt wind · 4 events here
• Heavy Snow, November 22, 20241 event here
• High Wind, November 16, 202466 kt wind · 1 event here
• Heavy Snow, November 4, 202462 kt wind · 1 event here
• High Wind, October 27, 202467 kt wind · 1 event here
• Heavy Snow, October 17, 202467 kt wind · 2 events here
• High Wind, October 4, 202470 kt wind · 7 events here
• High Wind, September 29, 202457 kt wind · 1 event here
• High Wind, September 26, 202455 kt wind · 1 event here
• Flash Flood, September 11, 202462 kt wind · 2 events here
• Wildfire, September 1, 20241 event here
• Heavy Snow, August 27, 202460 kt wind · 2 events here
• Wildfire, August 23, 20241 event here
• Thunderstorm Wind, August 22, 202472 kt wind · 6 events here
• Hail, August 6, 20241.5 in hail · 2 events here
• Wildfire, August 1, 20242 events here
• Wildfire, July 9, 20241 event here
• Winter Weather, June 16, 20241 event here
• Thunderstorm Wind, June 15, 202461 kt wind · 2 events here
• High Wind, June 3, 202463 kt wind · 6 events here
• Thunderstorm Wind, May 28, 202451 kt wind · 2 events here
• Heavy Snow, May 22, 20241 event here
• Blizzard, May 6, 202476 kt wind · 9 events here
• High Wind, April 21, 202466 kt wind · 1 event here
• Heavy Snow, March 23, 20241 event here
• High Wind, February 28, 202466 kt wind · 2 events here
• Winter Storm, February 25, 20241 event here
• High Wind, February 25, 202463 kt wind · 2 events here
• High Wind, February 23, 202468 kt wind · 4 events here
• Heavy Snow, February 14, 20241 event here
• Heavy Snow, February 6, 20241 event here
• Winter Storm, February 2, 20243 events here
• Winter Storm, January 16, 20245 events here
• Extreme Cold/Wind Chill, January 11, 20248 events here
• Winter Storm, January 8, 202469 kt wind · 3 events here
• High Wind, December 2, 202363 kt wind · 2 events here
• High Wind, November 11, 202377 kt wind · 6 events here
• Winter Storm, October 24, 20237 events here
• High Wind, October 17, 202365 kt wind · 6 events here
• High Wind, September 17, 202361 kt wind · 2 events here
• Thunderstorm Wind, August 18, 202365 kt wind · 3 events here
• Lightning, June 11, 20232 injured · 1 event here
• Tornado, June 5, 2023$5,000 · 1 in hail · 3 events here
• Heavy Snow, April 18, 20235 events here
• Heavy Snow, April 12, 20233 events here
• High Wind, April 10, 202358 kt wind · 1 event here
• Flood, April 7, 2023$100,000 · 1 event here
• Winter Storm, April 1, 202363 kt wind · 3 events here
• Heavy Snow, March 24, 20231 event here
• Winter Storm, March 14, 202359 kt wind · 5 events here
• Winter Storm, March 9, 202367 kt wind · 5 events here
• Heavy Snow, March 5, 20231 event here
• High Wind, March 2, 202376 kt wind · 4 events here
• Winter Storm, February 24, 202363 kt wind · 1 event here
• Extreme Cold/Wind Chill, February 23, 20234 events here
• Extreme Cold/Wind Chill, February 23, 20231 event here
• Extreme Cold/Wind Chill, February 22, 20233 events here
• High Wind, February 19, 202364 kt wind · 2 events here
• Winter Storm, February 18, 202368 kt wind · 6 events here
• Heavy Snow, February 13, 20232 events here
• High Wind, February 12, 202369 kt wind · 4 events here
• High Wind, February 7, 202363 kt wind · 2 events here
• High Wind, February 6, 202377 kt wind · 3 events here
• High Wind, February 3, 202364 kt wind · 2 events here
• High Wind, January 26, 202357 kt wind · 1 event here
• Winter Storm, January 26, 20237 events here
• Blizzard, December 23, 202274 kt wind · 1 event here
• Blizzard, December 19, 202258 kt wind · 8 events here
• Heavy Snow, December 14, 20221 event here
• Blizzard, December 7, 2022$1.0 million · 1 event here
• Heavy Snow, December 4, 20221 event here
• Heavy Snow, December 1, 20224 events here
• Heavy Snow, November 30, 20223 events here
• Winter Weather, November 27, 20221 event here
• High Wind, November 26, 202278 kt wind · 2 events here
• High Wind, November 22, 202276 kt wind · 2 events here
• Heavy Snow, November 6, 20223 events here
• High Wind, November 3, 202274 kt wind · 16 events here
• High Wind, October 30, 202261 kt wind · 1 event here
• High Wind, October 27, 202262 kt wind · 1 event here
• Winter Storm, October 21, 20224 events here
• Wildfire, September 3, 202270 kt wind · 6 events here
• Hail, August 12, 20221 in hail · 1 event here
• Tornado, July 5, 2022EF0 · 5 events here
• Flash Flood, July 2, 2022$700,000 · 61 kt wind · 14 events here
• Hail, June 18, 20223 injured · 1 in hail · 1 event here
• Heavy Rain, June 18, 20221 event here
• Flash Flood, July 20, 20211 in hail · 2 events here
• Hail, July 3, 20201.75 in hail · 1 event here
• Flood, June 29, 202014 events here
• Hail, June 24, 20201.5 in hail · 1 event here
• Thunderstorm Wind, June 6, 202050 kt wind · 1 event here
• Hail, May 18, 20201.25 in hail · 2 events here
• Thunderstorm Wind, September 6, 201962 kt wind · 4 events here
• Hail, August 10, 20192 in hail · 2 events here
• Tornado, June 27, 2019EF0 · 1 event here
• Thunderstorm Wind, May 30, 201950 kt wind · 1 event here
• Flood, May 26, 20191 event here
• Flood, June 19, 20185 events here
• Hail, May 31, 20181 in hail · 1 event here
• Hail, May 26, 20181 in hail · 1 event here
• Flood, May 25, 20181 event here
• Hail, May 16, 20181.1 in hail · 1 event here
• Flood, May 9, 20181 event here
• Tornado, May 9, 2018EF0 · 1 event here
• Flood, May 6, 20181 event here
• Flood, April 29, 20181 event here
• Flood, April 27, 20182 events here
• Thunderstorm Wind, August 30, 201758 kt wind · 1 event here
• Thunderstorm Wind, August 11, 201755 kt wind · 1 event here
• Thunderstorm Wind, July 15, 201763 kt wind · 2 events here
• Thunderstorm Wind, July 9, 201752 kt wind · 1 event here
• Thunderstorm Wind, July 5, 201761 kt wind · 1 event here
• Hail, June 8, 20171 in hail · 1 event here
• Hail, June 1, 20171.5 in hail · 3 events here
• Hail, May 6, 20171 in hail · 2 events here
• Hail, August 8, 20161.25 in hail · 1 event here
• Thunderstorm Wind, July 19, 201668 kt wind · 1 event here
• Hail, August 15, 20141.75 in hail · 2 events here
• Tornado, June 12, 2014EF0 · 3 events here
• Flood, March 1, 20141 event here
• Hail, September 5, 20132 in hail · 1 event here
• Flash Flood, July 17, 20131.25 in hail · 2 events here
• Hail, July 2, 20131.75 in hail · 3 events here
• Flash Flood, June 17, 20131.75 in hail · 1 event here
• Flash Flood, June 11, 20131 in hail · 1 event here
• Thunderstorm Wind, July 22, 201257 kt wind · 1 event here
• Flash Flood, July 20, 2012$55,000 · 2 events here
• Tornado, June 5, 2012EF1 · 1 event here
• Hail, June 4, 20122.75 in hail · 1 event here
• Hail, July 13, 20111.75 in hail · 2 events here
• Hail, June 23, 20111.75 in hail · 1 event here
• Flash Flood, June 3, 20111 event here
• Thunderstorm Wind, August 5, 201062 kt wind · 1 event here
• Hail, July 19, 20102 in hail · 1 event here
• Thunderstorm Wind, June 29, 201076 kt wind · 1 event here
• Hail, June 20, 20101.5 in hail · 1 event here
• Flash Flood, August 7, 20091 event here
• Hail, July 12, 20091 in hail · 1 event here
• Hail, July 6, 20091.75 in hail · 2 events here
• Hail, August 19, 200861 kt wind · 2 events here
• Hail, August 9, 20081.25 in hail · 2 events here
• Hail, July 4, 20081.75 in hail · 6 events here
• Thunderstorm Wind, June 21, 200858 kt wind · 1 event here
• Hail, May 30, 20081 in hail · 1 event here
• Flood, May 23, 20081 event here
• Thunderstorm Wind, May 20, 200858 kt wind · 2 events here
• Thunderstorm Wind, May 20, 200852 kt wind · 1 event here
• Dust Devil, May 1, 2008$1,000 · 1 event here
• Thunderstorm Wind, August 19, 200754 kt wind · 3 events here
• Tornado, June 16, 2007EF1 · 5 events here
• Hail, May 10, 20071 in hail · 1 event here
• Hail, May 10, 20071 in hail · 1 event here
• Thunderstorm Wind, July 23, 200661 kt wind · 1 event here
• Thunderstorm Wind, June 29, 200654 kt wind · 1 event here
• Thunderstorm Wind, June 4, 200666 kt wind · 1 event here
• Thunderstorm Wind, May 21, 200660 kt wind · 1 event here
• Thunderstorm Wind, July 24, 200552 kt wind · 1 event here
• Thunderstorm Wind, July 8, 200552 kt wind · 1 event here
• Hail, June 27, 20051.75 in hail · 2 events here
• Hail, June 16, 20051 in hail · 1 event here
• Hail, June 5, 20051 in hail · 1 event here
• Hail, June 5, 20050.75 in hail · 1 event here
• Hail, June 5, 20051.75 in hail · 1 event here
• Hail, August 5, 20040.75 in hail · 1 event here
• Hail, August 5, 20040.88 in hail · 1 event here
• Thunderstorm Wind, August 5, 200458 kt wind · 1 event here
• Hail, August 5, 20040.75 in hail · 1 event here
• Hail, August 3, 20041 in hail · 1 event here
• Hail, July 15, 20041.75 in hail · 1 event here
• Flash Flood, June 29, 20041 event here
• Hail, June 25, 20040.75 in hail · 1 event here
• Flash Flood, June 25, 20041 event here
• Hail, August 22, 20030.75 in hail · 1 event here
• Thunderstorm Wind, August 22, 200350 kt wind · 1 event here
• Lightning, August 13, 20035 injured · 1 event here
• Hail, August 6, 20030.75 in hail · 1 event here
• Thunderstorm Wind, July 23, 200361 kt wind · 1 event here
• Thunderstorm Wind, July 23, 200360 kt wind · 1 event here
• Thunderstorm Wind, June 20, 2003$10,000 · 61 kt wind · 1 event here
• Thunderstorm Wind, June 19, 200353 kt wind · 1 event here
• Thunderstorm Wind, June 19, 200350 kt wind · 1 event here
• Flash Flood, August 29, 20021 event here
• Flash Flood, August 7, 20021 event here
• Hail, August 5, 20021 in hail · 1 event here
• Thunderstorm Wind, July 23, 200256 kt wind · 1 event here
• Hail, July 14, 20020.75 in hail · 1 event here
• Hail, July 14, 20021.75 in hail · 1 event here
• Thunderstorm Wind, July 14, 200251 kt wind · 1 event here
• Thunderstorm Wind, June 27, 200252 kt wind · 1 event here
• Thunderstorm Wind, June 21, 200256 kt wind · 1 event here
• Flash Flood, June 10, 20021 event here
• Hail, August 4, 20011.5 in hail · 1 event here

Earlier years, state by state:

• 2001
• 2000
• 1999
• 1998
• 1997
• 1996
• 1995
• 1994
• 1992
• 1991
• 1990
• 1989
• 1988
• 1985
• 1984
• 1982
• 1976
• 1975
• 1974
• 1970
• 1966
• 1964
• 1960
• 1959
• 1957
• 1955
• 1953

Tornadoes in Lewis and Clark CountyEvery warning in Lewis and Clark County since 1986Every county in Montana

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.