Storm History: Union County, South Dakota

Events

834

Deaths

1

Injuries

18

Damage

$107 million

Episodes

664

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 Union County

• Blizzard, January 14, 20211 death · 2 injured · 70 kt wind · 1 event here

• Flood, June 20, 2024$55 million · 9 events here
• Flood, June 1, 2019$11 million · 1 event here
• Drought, July 1, 2022$11 million · 1 event here
• Drought, August 1, 2022$6.8 million · 1 event here
• Tornado, May 7, 1993$5.0 million · F3 · 1 event here
• Tornado, June 16, 1990$2.5 million · F1 · 1 event here
• Hail, August 10, 2020$2.5 million · 2 in hail · 1 event here
• Drought, October 1, 2023$2.2 million · 1 event here
• Drought, September 1, 2022$2.1 million · 1 event here
• Flood, June 15, 2014$2.0 million · 1 event here
• Flood, March 13, 2019$1.2 million · 1 event here
• Drought, June 1, 2022$710,000 · 1 event here
• Hail, June 25, 1994$505,000 · 2.75 in hail · 1 event here
• Tornado, October 4, 2013$450,000 · EF1 · 2 events here
• Hail, June 5, 1999$400,000 · 2.75 in hail · 1 event here
• Flood, September 11, 2019$382,000 · 1 event here
• Drought, July 1, 2021$300,000 · 1 event here
• Drought, August 1, 2020$270,000 · 1 event here
• Hail, August 2, 2001$200,000 · 1.75 in hail · 5 events here
• Drought, May 1, 2022$178,000 · 1 event here

• Hail, June 21, 20074.25 in hail · 3 events here
• Hail, August 28, 2011$10,000 · 3 in hail · 1 event here
• Flash Flood, September 22, 20103 in hail · 1 event here
• Hail, April 12, 20222.75 in hail · 1 event here
• Flash Flood, July 6, 20202.75 in hail · 1 event here
• Hail, June 29, 20172.75 in hail · 2 events here
• Hail, June 5, 1999$400,000 · 2.75 in hail · 1 event here
• Hail, June 25, 1994$505,000 · 2.75 in hail · 1 event here
• Hail, August 16, 19862.75 in hail · 1 event here
• Hail, August 25, 19802.75 in hail · 2 events here
• Flash Flood, July 8, 20092.5 in hail · 1 event here
• Hail, July 7, 20252 in hail · 2 events here
• Hail, October 23, 20222 in hail · 1 event here
• Hail, August 10, 2020$2.5 million · 2 in hail · 1 event here
• Hail, June 20, 20142 in hail · 1 event here

• Tornado, June 7, 1965F4 · 1 event here
• Tornado, June 16, 1992F3 · 1 event here
• Tornado, May 7, 1993$5.0 million · F3 · 1 event here
• Tornado, May 27, 1954$3,000 · F2 · 1 event here
• Tornado, August 8, 1969F2 · 1 event here
• Tornado, April 26, 1986F2 · 2 events here
• Tornado, July 28, 1986F2 · 3 events here
• Tornado, July 7, 1987F2 · 1 event here
• Tornado, June 15, 1992F2 · 1 event here
• Tornado, May 10, 2015EF2 · 1 event here
• Tornado, September 10, 2019$5,000 · EF2 · 1 event here
• Tornado, July 28, 2025EF2 · 4 events here

Every tornado in Union County, with its track

• Excessive Heat, June 29, 20261 event here
• Drought, June 1, 20261 event here
• Tornado, May 31, 2026EF1 · 1 event here
• Hail, May 18, 20260.88 in hail · 1 event here
• Drought, May 1, 20261 event here
• Drought, April 1, 20261 event here
• Blizzard, March 15, 202651 kt wind · 1 event here
• High Wind, March 12, 202666 kt wind · 1 event here
• Drought, March 3, 20261 event here
• High Wind, February 17, 202657 kt wind · 1 event here
• High Wind, January 21, 202663 kt wind · 1 event here
• High Wind, January 16, 202662 kt wind · 1 event here
• High Wind, December 28, 202557 kt wind · 2 events here
• High Wind, December 18, 202571 kt wind · 1 event here
• Cold/Wind Chill, December 13, 20252 events here
• High Wind, December 9, 202563 kt wind · 1 event here
• Winter Storm, December 6, 20251 event here
• Winter Storm, November 28, 20251 event here
• High Wind, November 25, 202565 kt wind · 1 event here
• Excessive Heat, August 15, 20251 event here
• Excessive Heat, August 8, 20251 event here
• Thunderstorm Wind, July 29, 202574 kt wind · 3 events here
• Tornado, July 28, 2025EF2 · 4 events here
• Excessive Heat, July 27, 20251 event here
• Thunderstorm Wind, July 27, 202556 kt wind · 1 event here
• Flash Flood, July 23, 202565 kt wind · 1 event here
• Excessive Heat, July 21, 20251 event here
• Hail, July 7, 20252 in hail · 2 events here
• Excessive Heat, June 20, 20251 event here
• Hail, June 14, 20251.25 in hail · 2 events here
• Hail, June 2, 20251.75 in hail · 6 events here
• High Wind, May 19, 202563 kt wind · 1 event here
• High Wind, May 19, 202555 kt wind · 1 event here
• Hail, April 17, 20251 in hail · 1 event here
• Blizzard, March 4, 202552 kt wind · 2 events here
• Drought, March 1, 20251 event here
• High Wind, February 28, 202554 kt wind · 1 event here
• Extreme Cold/Wind Chill, February 17, 20251 event here
• Extreme Cold/Wind Chill, February 13, 20251 event here
• Winter Storm, February 10, 20251 event here
• Drought, February 1, 20251 event here
• Extreme Cold/Wind Chill, January 19, 20251 event here
• Drought, January 1, 20251 event here
• High Wind, December 19, 202462 kt wind · 1 event here
• High Wind, December 9, 202450 kt wind · 1 event here
• High Wind, December 4, 202451 kt wind · 1 event here
• Drought, December 1, 20241 event here
• High Wind, November 19, 202462 kt wind · 1 event here
• Drought, November 1, 20241 event here
• Drought, October 8, 20241 event here
• Excessive Heat, August 25, 20241 event here
• Heat, August 5, 20241 event here
• Excessive Heat, August 2, 20241 event here
• Excessive Heat, July 31, 20241 event here
• Hail, July 29, 20241.75 in hail · 5 events here
• Excessive Heat, July 13, 20241 event here
• Flood, July 1, 20243 events here
• Hail, June 25, 20240.75 in hail · 1 event here
• Flood, June 20, 2024$55 million · 9 events here
• High Wind, June 6, 202455 kt wind · 1 event here
• Hail, May 20, 2024$10,000 · 1.75 in hail · 3 events here
• Thunderstorm Wind, May 6, 202465 kt wind · 1 event here
• Hail, April 16, 20241.25 in hail · 1 event here
• High Wind, April 6, 202457 kt wind · 1 event here
• Winter Weather, February 27, 20241 event here
• Cold/Wind Chill, January 19, 20241 event here
• Winter Weather, January 18, 20241 event here
• Blizzard, January 11, 20243 events here
• Winter Weather, January 10, 20241 event here
• Winter Storm, January 7, 20241 event here
• Blizzard, December 25, 20231 event here
• Strong Wind, December 8, 20231 event here
• Winter Weather, October 28, 20231 injured · 1 event here
• Drought, October 1, 2023$2.2 million · 1 event here
• Heat, September 2, 20231 event here
• Drought, September 1, 20231 event here
• Excessive Heat, August 21, 20231 event here
• Excessive Heat, August 19, 20231 event here
• Drought, August 1, 20231 event here
• Excessive Heat, July 25, 20231 event here
• Hail, July 12, 20231.5 in hail · 3 events here
• Tornado, July 3, 2023EF0 · 1 event here
• Drought, July 1, 20231 event here
• Hail, June 24, 20231.5 in hail · 1 event here
• Thunderstorm Wind, June 24, 202370 kt wind · 1 event here
• Drought, June 1, 20231 event here
• Thunderstorm Wind, May 12, 202352 kt wind · 1 event here
• Hail, May 11, 20231.75 in hail · 1 event here
• Hail, May 8, 20231 in hail · 1 event here
• Drought, May 1, 20231 event here
• High Wind, April 30, 202351 kt wind · 1 event here
• Hail, April 19, 20231.5 in hail · 3 events here
• Flood, April 9, 2023$17,000 · 3 events here
• Drought, April 1, 20231 event here
• Hail, March 30, 20231.5 in hail · 1 event here
• Winter Weather, March 22, 20231 event here
• Flood, March 16, 20231 event here
• Winter Weather, March 16, 20231 event here
• Winter Weather, March 8, 20231 event here
• Drought, March 1, 20231 event here
• Extreme Cold/Wind Chill, February 23, 20231 event here
• Blizzard, February 21, 20231 event here
• High Wind, February 14, 202355 kt wind · 1 event here
• Drought, February 1, 20231 event here
• Winter Storm, January 27, 20231 event here
• Winter Storm, January 18, 20231 event here
• Winter Storm, January 2, 20231 event here
• Drought, January 1, 20231 event here
• Blizzard, December 22, 20221 event here
• Extreme Cold/Wind Chill, December 21, 20221 event here
• Blizzard, December 13, 20221 event here
• Winter Storm, December 8, 20221 event here
• Drought, December 1, 20221 event here
• Winter Weather, November 28, 20221 event here
• Drought, November 1, 20221 event here
• Hail, October 23, 20222 in hail · 1 event here
• Drought, October 1, 20221 event here
• Drought, September 1, 2022$2.1 million · 1 event here
• Drought, August 1, 2022$6.8 million · 1 event here
• Flash Flood, July 5, 20221 in hail · 2 events here
• Drought, July 1, 2022$11 million · 1 event here
• Drought, June 1, 2022$710,000 · 1 event here
• Tornado, May 30, 2022EF1 · 1 event here
• Hail, May 12, 2022$8,000 · 1 in hail · 10 events here
• Drought, May 1, 2022$178,000 · 1 event here
• Wildfire, April 23, 202263 kt wind · 1 event here
• High Wind, April 13, 202259 kt wind · 1 event here
• Hail, April 12, 20222.75 in hail · 1 event here
• High Wind, April 5, 202260 kt wind · 2 events here
• Drought, April 1, 20221 event here
• High Wind, March 25, 202251 kt wind · 1 event here
• Drought, March 15, 20221 event here
• Winter Storm, March 5, 20221 event here
• Extreme Cold/Wind Chill, February 22, 20221 event here
• Winter Weather, February 21, 20221 event here
• Extreme Cold/Wind Chill, January 6, 20221 event here
• Extreme Cold/Wind Chill, January 1, 20221 event here
• Extreme Cold/Wind Chill, December 31, 20211 event here
• High Wind, December 15, 202164 kt wind · 1 event here
• Winter Storm, December 10, 20211 event here
• Hail, October 20, 20210.75 in hail · 1 event here
• Hail, September 16, 20211.25 in hail · 1 event here
• Drought, September 1, 2021$21,000 · 1 event here
• Hail, August 30, 2021$6,000 · 1.75 in hail · 2 events here
• Thunderstorm Wind, August 26, 202156 kt wind · 1 event here
• Drought, August 1, 2021$10,000 · 1 event here
• Hail, July 8, 20211.5 in hail · 1 event here
• Drought, July 1, 2021$300,000 · 1 event here
• Drought, June 1, 2021$26,000 · 1 event here
• Drought, May 1, 2021$50,000 · 1 event here
• Drought, April 1, 20211 event here
• Winter Storm, March 14, 20211 event here
• Drought, March 1, 20211 event here
• Extreme Cold/Wind Chill, February 13, 20211 event here
• Winter Weather, February 3, 20211 event here
• Drought, February 1, 20211 event here
• Winter Weather, January 25, 20211 event here
• Winter Weather, January 23, 20211 event here
• Blizzard, January 14, 20211 death · 2 injured · 70 kt wind · 1 event here
• Drought, January 1, 20211 event here
• Winter Storm, December 29, 20201 event here
• Blizzard, December 23, 20201 event here
• Drought, December 1, 20201 event here
• Winter Storm, November 10, 20201 event here
• Drought, November 1, 2020$54,000 · 1 event here
• Winter Storm, October 24, 20201 event here
• Hail, October 11, 2020$5,000 · 1.75 in hail · 1 event here
• Drought, October 1, 2020$31,000 · 1 event here
• Drought, September 1, 2020$35,000 · 1 event here
• Hail, August 10, 2020$2.5 million · 2 in hail · 1 event here
• Drought, August 1, 2020$270,000 · 1 event here
• Flash Flood, July 28, 2020$3,000 · 56 kt wind · 1 event here
• Drought, July 28, 2020$40,000 · 1 event here
• Flash Flood, July 6, 20202.75 in hail · 1 event here
• Thunderstorm Wind, July 3, 2020$5,000 · 64 kt wind · 4 events here
• Hail, June 21, 2020$7,000 · 1 in hail · 3 events here
• Winter Storm, April 11, 20201 event here
• Flood, April 1, 2020$32,000 · 3 events here
• Flood, March 27, 20203 events here
• Winter Weather, March 19, 202011 injured · 1 event here
• Flood, March 5, 20202 events here
• Winter Weather, February 19, 20201 event here
• Blizzard, February 12, 20201 event here
• Extreme Cold/Wind Chill, February 12, 20201 event here
• Cold/Wind Chill, January 18, 20201 event here
• Blizzard, January 17, 20201 event here
• Winter Weather, January 12, 20201 event here
• Blizzard, December 28, 20191 event here
• Winter Storm, November 28, 20191 event here
• Winter Storm, November 26, 20191 event here
• High Wind, October 21, 201953 kt wind · 1 event here
• Flood, October 1, 2019$15,000 · 3 events here
• Flood, October 1, 2019$5,000 · 1 event here
• Flood, September 17, 2019$5,000 · 1 event here
• Flood, September 14, 2019$25,000 · 1 event here
• Flood, September 11, 2019$55,000 · 4 events here
• Flood, September 11, 2019$382,000 · 1 event here
• Tornado, September 10, 2019$5,000 · EF2 · 1 event here
• Tornado, July 17, 2019EF1 · 1 event here
• Flood, July 1, 20193 events here
• Heat, June 30, 20191 event here
• Excessive Heat, June 29, 20191 event here
• Heat, June 28, 20191 event here
• Flood, June 27, 20194 events here
• Flood, June 1, 20195 events here
• Flood, June 1, 20192 events here
• Flood, June 1, 2019$11 million · 1 event here
• Hail, May 31, 20190.88 in hail · 1 event here
• Flood, May 29, 20193 events here
• Flood, May 24, 20192 events here
• Flood, May 1, 20193 events here
• Flood, April 11, 20191 event here
• Blizzard, April 10, 2019$2,000 · 1 event here
• Flood, April 1, 20193 events here
• Flood, March 13, 20197 events here
• Flood, March 13, 2019$1.2 million · 1 event here
• Winter Weather, February 3, 20191 event here
• Cold/Wind Chill, January 1, 20191 event here
• Winter Storm, December 1, 20181 event here
• Winter Weather, November 28, 20181 event here
• Flood, October 10, 20183 events here
• Flood, October 1, 20182 events here
• Flood, September 20, 20185 events here
• Flash Flood, September 20, 20181 event here
• Flood, September 4, 20181 event here
• Heat, July 11, 20181 event here
• Heat, July 4, 20181 event here
• Flood, July 1, 20184 events here
• Flood, June 21, 20185 events here
• Thunderstorm Wind, June 1, 201870 kt wind · 1 event here
• Flood, May 12, 20183 events here
• Flood, May 1, 20182 events here
• Flood, April 20, 20182 events here
• Winter Storm, April 18, 20181 event here
• Blizzard, April 13, 20181 event here
• Winter Weather, April 8, 20181 event here
• Winter Weather, April 2, 20181 event here
• Flood, April 1, 20182 events here
• Flood, March 29, 20181 event here
• Flood, March 21, 20181 event here
• Winter Weather, March 16, 20181 event here
• Flood, March 6, 20182 events here
• Blizzard, March 5, 20181 event here
• Winter Weather, February 24, 20181 event here
• Winter Weather, February 22, 20181 event here
• Winter Weather, February 19, 20181 event here
• Winter Weather, February 8, 20181 event here
• Winter Weather, February 5, 20181 event here
• Blizzard, January 22, 20181 event here
• Cold/Wind Chill, January 15, 20181 event here

Earlier years, state by state:

• 2018
• 2017
• 2016
• 2015
• 2014
• 2013
• 2012
• 2011
• 2010
• 2009
• 2008
• 2007
• 2006
• 2005
• 2004
• 2003
• 2002
• 2001
• 2000
• 1999
• 1998
• 1997
• 1996
• 1995
• 1994
• 1993
• 1992
• 1991
• 1990
• 1988
• 1987
• 1986
• 1985
• 1984
• 1983
• 1982
• 1981
• 1980
• 1979
• 1978
• 1976
• 1975
• 1974
• 1973
• 1969
• 1965
• 1964
• 1963
• 1962
• 1959
• 1954

Tornadoes in Union CountyEvery warning in Union County since 1986Every county in South Dakota

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.