Storm History: Dewey County, South Dakota
Every storm the National Weather Service has filed in Dewey County, South Dakota: 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
- 814
- Deaths
- 3
- Injuries
- 2
- Damage
- $4.3 million
- Episodes
- 551
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.
Every year
By kind of event
Counted under the kind that heads each episode.
| Kind of event | Events | Deaths | Injuries | Damage |
|---|---|---|---|---|
| Hail | 293 | 0 | 0 | $5,000 |
| Tornado | 115 | 0 | 1 | $240,000 |
| High Wind | 76 | 0 | 0 | |
| Drought | 64 | 0 | 0 | |
| Flash Flood | 47 | 0 | 0 | |
| Thunderstorm Wind | 45 | 0 | 0 | |
| Blizzard | 44 | 0 | 1 | |
| Extreme Cold/Wind Chill | 34 | 3 | 0 | |
| Heavy Snow | 29 | 0 | 0 | |
| Flood | 24 | 0 | 0 | $3.8 million |
| Winter Storm | 21 | 0 | 0 | |
| Excessive Heat | 6 | 0 | 0 | $9,000 |
| Wildfire | 4 | 0 | 0 | |
| Cold/Wind Chill | 3 | 0 | 0 | |
| Heat | 2 | 0 | 0 | |
| Ice Storm | 2 | 0 | 0 | $223,000 |
| Strong Wind | 1 | 0 | 0 | |
| Lightning | 1 | 0 | 0 | |
| Winter Weather | 1 | 0 | 0 | |
| Funnel Cloud | 1 | 0 | 0 | |
| Dense Smoke | 1 | 0 | 0 |
The deadliest
The costliest
Damage within this county, in the dollars of its year.
- Flood, June 1, 2019
- Flood, June 5, 2008
- Ice Storm, December 25, 2016
- Flood, April 1, 2019
- Tornado, June 16, 2010
- Flood, June 5, 2008
- Tornado, July 6, 1994
- Tornado, June 2, 1953
- Tornado, June 8, 1964
- Tornado, September 24, 1986
- Tornado, June 14, 2009
- Excessive Heat, July 25, 2024
- Hail, July 10, 1994
- Tornado, April 19, 1955
- Tornado, May 18, 1977
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 episode, newest first
- Thunderstorm Wind, June 7, 2026
- Hail, June 3, 2026
- High Wind, April 8, 2026
- Heavy Snow, April 3, 2026
- Wildfire, March 12, 2026
- Blizzard, February 17, 2026
- Extreme Cold/Wind Chill, January 22, 2026
- High Wind, January 21, 2026
- High Wind, January 15, 2026
- Blizzard, December 17, 2025
- High Wind, December 9, 2025
- Heavy Snow, November 28, 2025
- Blizzard, November 25, 2025
- High Wind, October 20, 2025
- Flood, September 18, 2025
- Thunderstorm Wind, September 13, 2025
- High Wind, September 4, 2025
- Thunderstorm Wind, August 18, 2025
- Flood, August 17, 2025
- Hail, July 26, 2025
- Flood, July 23, 2025
- Thunderstorm Wind, July 21, 2025
- Hail, July 20, 2025
- Hail, July 14, 2025
- Hail, July 9, 2025
- Hail, June 16, 2025
- Hail, June 15, 2025
- High Wind, May 15, 2025
- Drought, May 1, 2025
- Wildfire, April 11, 2025
- High Wind, April 9, 2025
- Drought, April 1, 2025
- Wildfire, March 20, 2025
- Drought, March 1, 2025
- Tornado, February 24, 2025
- Extreme Cold/Wind Chill, February 17, 2025
- Extreme Cold/Wind Chill, February 11, 2025
- Drought, February 1, 2025
- Extreme Cold/Wind Chill, January 18, 2025
- Drought, January 1, 2025
- High Wind, December 19, 2024
- Drought, December 1, 2024
- High Wind, November 19, 2024
- Drought, November 1, 2024
- Drought, October 8, 2024
- Flash Flood, August 21, 2024
- Hail, July 29, 2024
- Excessive Heat, July 25, 2024
- Thunderstorm Wind, July 13, 2024
- Tornado, June 27, 2024
- Hail, June 7, 2024
- Hail, May 19, 2024
- Thunderstorm Wind, May 17, 2024
- Extreme Cold/Wind Chill, January 12, 2024
- Blizzard, December 25, 2023
- Ice Storm, December 25, 2023
- Heavy Snow, October 26, 2023
- Excessive Heat, August 21, 2023
- Hail, July 30, 2023
- Hail, June 23, 2023
- Hail, June 20, 2023
- Dense Smoke, May 17, 2023
- Heavy Snow, April 3, 2023
- Blizzard, March 31, 2023
- Heavy Snow, March 5, 2023
- Extreme Cold/Wind Chill, February 24, 2023
- High Wind, February 14, 2023
- Extreme Cold/Wind Chill, January 30, 2023
- High Wind, January 27, 2023
- Blizzard, December 21, 2022
- Extreme Cold/Wind Chill, December 21, 2022
- Blizzard, December 14, 2022
- Heavy Snow, December 13, 2022
- Drought, December 1, 2022
- Drought, November 1, 2022
- High Wind, October 13, 2022
- High Wind, October 12, 2022
- Drought, October 1, 2022
- Drought, September 1, 2022
- Excessive Heat, August 5, 2022
- Drought, August 1, 2022
- Hail, July 21, 2022
- High Wind, July 19, 2022
- Excessive Heat, July 18, 2022
- Hail, July 5, 2022
- Drought, July 1, 2022
- Hail, June 24, 2022
- Hail, June 23, 2022
- Hail, June 20, 2022
- Hail, June 14, 2022
- Tornado, June 12, 2022
- Drought, June 1, 2022
- Hail, May 11, 2022
- Drought, May 1, 2022
- Tornado, April 22, 2022
- Blizzard, April 12, 2022
- High Wind, April 12, 2022
- High Wind, April 5, 2022
- Drought, April 1, 2022
- Drought, March 1, 2022
- Extreme Cold/Wind Chill, February 22, 2022
- Drought, February 1, 2022
- High Wind, February 1, 2022
- Extreme Cold/Wind Chill, January 4, 2022
- High Wind, January 4, 2022
- Extreme Cold/Wind Chill, January 1, 2022
- Drought, January 1, 2022
- Extreme Cold/Wind Chill, December 28, 2021
- High Wind, December 15, 2021
- High Wind, December 5, 2021
- Drought, December 1, 2021
- High Wind, November 17, 2021
- High Wind, November 13, 2021
- High Wind, November 11, 2021
- Drought, November 1, 2021
- Drought, October 1, 2021
- Hail, September 19, 2021
- Drought, September 1, 2021
- Hail, August 23, 2021
- Hail, August 14, 2021
- Drought, August 1, 2021
- Hail, July 8, 2021
- Hail, July 3, 2021
- Drought, July 1, 2021
- Tornado, June 8, 2021
- Funnel Cloud, June 8, 2021
- Drought, June 1, 2021
- Thunderstorm Wind, May 23, 2021
- Drought, May 1, 2021
- High Wind, April 12, 2021
- Drought, April 1, 2021
- High Wind, March 29, 2021
- Drought, March 1, 2021
- Drought, February 23, 2021
- Extreme Cold/Wind Chill, February 6, 2021
- High Wind, January 14, 2021
- High Wind, December 22, 2020
- High Wind, October 31, 2020
- Heavy Snow, October 24, 2020
- Heavy Snow, October 21, 2020
- Hail, August 26, 2020
- Hail, July 31, 2020
- Hail, July 22, 2020
- High Wind, July 7, 2020
- Hail, July 2, 2020
- Thunderstorm Wind, June 6, 2020
- Heavy Snow, February 8, 2020
- High Wind, January 17, 2020
- Winter Storm, December 27, 2019
- Winter Storm, December 1, 2019
- Winter Storm, November 29, 2019
- Heavy Snow, October 10, 2019
- Tornado, August 9, 2019
- Hail, August 6, 2019
- Hail, July 16, 2019
- Flood, June 1, 2019
- Flood, May 1, 2019
- Blizzard, April 11, 2019
- Flood, April 1, 2019
- Flood, March 23, 2019
- Flood, March 22, 2019
- Blizzard, March 13, 2019
- Heavy Snow, March 9, 2019
- Extreme Cold/Wind Chill, March 2, 2019
- Heavy Snow, February 16, 2019
- Extreme Cold/Wind Chill, February 8, 2019
- Heavy Snow, February 6, 2019
- High Wind, January 27, 2019
- Blizzard, December 27, 2018
- Hail, July 19, 2018
- Flash Flood, July 3, 2018
- Flash Flood, June 26, 2018
- Tornado, June 16, 2018
- Hail, June 14, 2018
- Flood, June 10, 2018
- Hail, June 5, 2018
- Tornado, June 1, 2018
- Flash Flood, May 17, 2018
- Blizzard, April 13, 2018
- Heavy Snow, April 8, 2018
- Drought, April 1, 2018
- Blizzard, March 5, 2018
- Drought, March 1, 2018
- Heavy Snow, February 18, 2018
- Drought, February 1, 2018
- Extreme Cold/Wind Chill, January 15, 2018
- Drought, January 1, 2018
- Extreme Cold/Wind Chill, January 1, 2018
- Extreme Cold/Wind Chill, December 30, 2017
- Extreme Cold/Wind Chill, December 26, 2017
- Blizzard, December 4, 2017
- Drought, December 1, 2017
- Drought, November 1, 2017
- High Wind, October 26, 2017
- Drought, October 1, 2017
- Drought, September 1, 2017
- Flash Flood, August 21, 2017
- Flash Flood, August 12, 2017
- Drought, August 1, 2017
- Thunderstorm Wind, July 29, 2017
- Thunderstorm Wind, July 20, 2017
- Hail, July 5, 2017
- Drought, July 1, 2017
- Drought, June 6, 2017
- High Wind, March 7, 2017
- Extreme Cold/Wind Chill, January 3, 2017
- Extreme Cold/Wind Chill, January 1, 2017
- Ice Storm, December 25, 2016
- Blizzard, December 25, 2016
- Extreme Cold/Wind Chill, December 17, 2016
- Blizzard, December 5, 2016
- Hail, August 14, 2016
- Hail, August 9, 2016
- Thunderstorm Wind, July 23, 2016
- Flash Flood, July 22, 2016
- Excessive Heat, July 19, 2016
- Tornado, July 16, 2016
- Hail, May 30, 2016
- High Wind, February 19, 2016
- Winter Storm, February 13, 2016
- High Wind, February 7, 2016
- Winter Storm, December 15, 2015
- High Wind, November 18, 2015
- High Wind, October 11, 2015
- High Wind, August 22, 2015
- Thunderstorm Wind, July 27, 2015
- Tornado, July 24, 2015
- Hail, July 4, 2015
- Hail, June 21, 2015
- Thunderstorm Wind, June 14, 2015
- Heavy Snow, May 9, 2015
- High Wind, March 29, 2015
- Winter Weather, February 9, 2015
- High Wind, January 8, 2015
- High Wind, November 7, 2014
- Hail, September 19, 2014
- Hail, August 20, 2014
- Hail, July 24, 2014
- Tornado, June 21, 2014
- Flood, June 19, 2014
- Tornado, June 18, 2014
- Hail, June 13, 2014
- Blizzard, March 31, 2014
- Flood, March 11, 2014
- High Wind, January 25, 2014
- High Wind, January 20, 2014
- High Wind, January 16, 2014
- Extreme Cold/Wind Chill, January 5, 2014
- Extreme Cold/Wind Chill, December 22, 2013
- Extreme Cold/Wind Chill, December 6, 2013
Earlier years, state by state:
More
Tornadoes in Dewey CountyEvery warning in Dewey County since 1986Every county in South Dakota
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.