Storm History: Gregory County, South Dakota
Every storm the National Weather Service has filed in Gregory 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
- 751
- Deaths
- 0
- Injuries
- 10
- Damage
- $40 million
- Episodes
- 581
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 | 244 | 0 | 0 | $4.9 million |
| Tornado | 89 | 0 | 10 | $11 million |
| High Wind | 61 | 0 | 0 | $177,000 |
| Drought | 54 | 0 | 0 | $14 million |
| Blizzard | 48 | 0 | 0 | $281,000 |
| Winter Storm | 48 | 0 | 0 | $40,000 |
| Winter Weather | 45 | 0 | 0 | |
| Thunderstorm Wind | 44 | 0 | 0 | $60,000 |
| Flash Flood | 33 | 0 | 0 | $672,000 |
| Excessive Heat | 22 | 0 | 0 | |
| Heavy Snow | 16 | 0 | 0 | |
| Extreme Cold/Wind Chill | 13 | 0 | 0 | |
| Cold/Wind Chill | 10 | 0 | 0 | |
| Flood | 9 | 0 | 0 | $7.9 million |
| Heat | 5 | 0 | 0 | |
| Ice Storm | 4 | 0 | 0 | $1.0 million |
| Strong Wind | 3 | 0 | 0 | |
| Wildfire | 2 | 0 | 0 | |
| Lightning | 1 | 0 | 0 |
The deadliest
None recorded.
The costliest
Damage within this county, in the dollars of its year.
- Tornado, August 6, 2019
- Flood, June 1, 2019
- Drought, July 1, 2022
- Drought, August 1, 2022
- Hail, August 3, 2009
- Tornado, May 21, 1962
- Drought, July 1, 2021
- Hail, July 2, 1999
- Flood, March 13, 2019
- Tornado, August 9, 2002
- Ice Storm, November 27, 2005
- Drought, June 8, 2021
- Drought, July 1, 2023
- Drought, September 1, 2022
- Flash Flood, August 9, 2019
- Flood, June 20, 2024
- Drought, August 1, 2021
- Drought, June 1, 2022
- Hail, June 17, 2008
- Tornado, June 4, 1966
The largest hail
The largest stone in each episode, which may have fallen in a neighboring county of the same episode.
- Hail, July 28, 2024
- Flash Flood, August 25, 2024
- Hail, April 12, 2022
- Hail, June 20, 2020
- Flash Flood, July 6, 2020
- Hail, July 12, 2004
- Hail, April 26, 1991
- Hail, August 3, 1988
- Tornado, April 22, 2022
- Hail, July 19, 2017
- Flash Flood, May 5, 2012
- Flash Flood, July 8, 2009
- Hail, July 12, 2004
- Hail, July 12, 2004
- Tornado, July 31, 2024
The strongest tornadoes
- Tornado, May 8, 1965
- Tornado, May 15, 1962
- Tornado, May 21, 1962
- Tornado, July 12, 1965
- Tornado, June 20, 1968
- Tornado, June 16, 1992
- Tornado, May 5, 2007
- Tornado, August 1, 1954
- Tornado, June 20, 1957
- Tornado, June 4, 1966
- Tornado, June 18, 1967
- Tornado, August 5, 1987
- Tornado, August 9, 2002
- Tornado, June 5, 2008
- Tornado, July 28, 2025
Every episode, newest first
- Thunderstorm Wind, June 27, 2026
- Hail, June 9, 2026
- Drought, June 1, 2026
- Tornado, May 17, 2026
- High Wind, May 14, 2026
- Drought, May 1, 2026
- Drought, April 1, 2026
- High Wind, March 28, 2026
- Drought, March 17, 2026
- Blizzard, March 15, 2026
- High Wind, March 12, 2026
- High Wind, February 17, 2026
- High Wind, January 21, 2026
- High Wind, January 16, 2026
- High Wind, December 28, 2025
- High Wind, December 18, 2025
- Cold/Wind Chill, December 13, 2025
- High Wind, December 9, 2025
- Winter Storm, November 28, 2025
- High Wind, November 25, 2025
- High Wind, September 4, 2025
- Thunderstorm Wind, August 17, 2025
- Hail, August 16, 2025
- Excessive Heat, August 15, 2025
- Thunderstorm Wind, August 13, 2025
- Excessive Heat, August 8, 2025
- Hail, August 3, 2025
- Tornado, July 28, 2025
- Excessive Heat, July 27, 2025
- Excessive Heat, July 21, 2025
- Hail, July 15, 2025
- Hail, June 28, 2025
- Hail, June 27, 2025
- Excessive Heat, June 20, 2025
- Hail, June 19, 2025
- High Wind, May 19, 2025
- High Wind, May 15, 2025
- Thunderstorm Wind, May 14, 2025
- High Wind, April 21, 2025
- High Wind, April 14, 2025
- Drought, April 1, 2025
- Winter Weather, March 29, 2025
- High Wind, March 14, 2025
- Winter Storm, March 6, 2025
- Blizzard, March 4, 2025
- Drought, March 1, 2025
- High Wind, February 28, 2025
- Extreme Cold/Wind Chill, February 17, 2025
- Drought, February 1, 2025
- Extreme Cold/Wind Chill, January 19, 2025
- Winter Weather, January 4, 2025
- Drought, January 1, 2025
- Winter Weather, December 30, 2024
- High Wind, December 19, 2024
- High Wind, December 9, 2024
- High Wind, December 4, 2024
- Drought, December 1, 2024
- High Wind, November 19, 2024
- Drought, November 1, 2024
- Drought, October 29, 2024
- Strong Wind, September 12, 2024
- Flash Flood, August 25, 2024
- Excessive Heat, August 25, 2024
- Hail, August 18, 2024
- Excessive Heat, August 2, 2024
- Tornado, July 31, 2024
- Excessive Heat, July 31, 2024
- Hail, July 29, 2024
- Hail, July 28, 2024
- Thunderstorm Wind, July 14, 2024
- Excessive Heat, July 13, 2024
- Flood, June 20, 2024
- High Wind, May 21, 2024
- Winter Storm, March 24, 2024
- High Wind, March 6, 2024
- Winter Weather, February 27, 2024
- High Wind, January 21, 2024
- Cold/Wind Chill, January 19, 2024
- Winter Weather, January 18, 2024
- Blizzard, January 11, 2024
- Winter Storm, January 7, 2024
- Blizzard, December 25, 2023
- Strong Wind, December 8, 2023
- Strong Wind, December 4, 2023
- High Wind, October 17, 2023
- Thunderstorm Wind, October 12, 2023
- Heat, September 2, 2023
- Excessive Heat, August 21, 2023
- Excessive Heat, August 19, 2023
- Excessive Heat, July 25, 2023
- Thunderstorm Wind, July 18, 2023
- Thunderstorm Wind, July 14, 2023
- Hail, July 12, 2023
- Drought, July 1, 2023
- Drought, June 1, 2023
- Ice Storm, April 4, 2023
- Winter Weather, March 16, 2023
- Winter Weather, March 8, 2023
- Drought, March 1, 2023
- Extreme Cold/Wind Chill, February 23, 2023
- Blizzard, February 21, 2023
- High Wind, February 14, 2023
- Drought, February 1, 2023
- Winter Storm, January 27, 2023
- Winter Storm, January 18, 2023
- Winter Storm, January 2, 2023
- Drought, January 1, 2023
- Blizzard, December 22, 2022
- Extreme Cold/Wind Chill, December 21, 2022
- Blizzard, December 13, 2022
- Winter Storm, December 8, 2022
- Drought, December 1, 2022
- Winter Weather, November 28, 2022
- Winter Weather, November 9, 2022
- Drought, November 1, 2022
- High Wind, October 13, 2022
- Drought, October 1, 2022
- Drought, September 1, 2022
- Excessive Heat, August 5, 2022
- Drought, August 1, 2022
- Flash Flood, July 5, 2022
- Drought, July 1, 2022
- Hail, June 25, 2022
- Thunderstorm Wind, June 12, 2022
- Drought, June 1, 2022
- Tornado, May 30, 2022
- Tornado, May 29, 2022
- Hail, May 12, 2022
- Drought, May 1, 2022
- High Wind, April 30, 2022
- High Wind, April 24, 2022
- Tornado, April 22, 2022
- Hail, April 12, 2022
- High Wind, April 5, 2022
- Drought, April 1, 2022
- High Wind, March 25, 2022
- Drought, March 22, 2022
- Winter Storm, March 5, 2022
- Extreme Cold/Wind Chill, February 22, 2022
- Winter Weather, February 21, 2022
- Extreme Cold/Wind Chill, January 6, 2022
- High Wind, January 4, 2022
- Extreme Cold/Wind Chill, January 1, 2022
- Extreme Cold/Wind Chill, December 31, 2021
- High Wind, December 15, 2021
- Winter Storm, December 10, 2021
- High Wind, December 5, 2021
- High Wind, November 13, 2021
- High Wind, November 11, 2021
- Drought, November 1, 2021
- Drought, October 1, 2021
- Hail, September 16, 2021
- Drought, September 1, 2021
- Drought, August 1, 2021
- Drought, July 1, 2021
- Hail, June 23, 2021
- Drought, June 8, 2021
- Winter Storm, March 14, 2021
- Winter Weather, March 10, 2021
- Winter Storm, February 27, 2021
- Extreme Cold/Wind Chill, February 13, 2021
- Winter Weather, February 3, 2021
- Winter Weather, January 25, 2021
- Winter Weather, January 23, 2021
- Blizzard, January 14, 2021
- Drought, January 1, 2021
- Winter Storm, December 29, 2020
- Blizzard, December 23, 2020
- Drought, December 1, 2020
- Drought, November 5, 2020
- Winter Storm, October 24, 2020
- Hail, August 10, 2020
- Thunderstorm Wind, August 8, 2020
- Hail, July 8, 2020
- Flash Flood, July 6, 2020
- Thunderstorm Wind, July 2, 2020
- Hail, June 30, 2020
- Hail, June 20, 2020
- Winter Storm, April 11, 2020
- Winter Weather, March 19, 2020
- Cold/Wind Chill, January 18, 2020
- Blizzard, January 17, 2020
- Blizzard, December 28, 2019
- Winter Storm, December 1, 2019
- Winter Storm, November 28, 2019
- Winter Storm, November 26, 2019
- Winter Weather, October 10, 2019
- Flood, September 11, 2019
- Hail, August 17, 2019
- Hail, August 16, 2019
- Flash Flood, August 9, 2019
- Tornado, August 6, 2019
- Hail, July 9, 2019
- Thunderstorm Wind, June 30, 2019
- Tornado, June 30, 2019
- Heat, June 30, 2019
- Excessive Heat, June 29, 2019
- Heat, June 28, 2019
- Hail, June 19, 2019
- Hail, June 4, 2019
- Flood, June 1, 2019
- Blizzard, April 10, 2019
- Blizzard, March 14, 2019
- Flood, March 13, 2019
- Winter Storm, March 9, 2019
- Extreme Cold/Wind Chill, March 3, 2019
- Cold/Wind Chill, January 1, 2019
- Winter Weather, December 31, 2018
- Winter Storm, December 26, 2018
- Winter Storm, December 1, 2018
- Winter Weather, October 14, 2018
- Flash Flood, July 12, 2018
- Heat, July 11, 2018
- Heat, July 8, 2018
- Thunderstorm Wind, June 24, 2018
- Hail, June 13, 2018
- Thunderstorm Wind, June 1, 2018
- Winter Storm, April 18, 2018
- Blizzard, April 13, 2018
- Winter Storm, April 2, 2018
- Winter Weather, March 16, 2018
- Blizzard, March 5, 2018
- Winter Weather, February 24, 2018
- Winter Weather, February 22, 2018
- Winter Weather, February 19, 2018
- Cold/Wind Chill, February 10, 2018
- Winter Weather, February 8, 2018
- Winter Weather, February 5, 2018
- Winter Storm, January 21, 2018
- Cold/Wind Chill, January 15, 2018
- Winter Weather, January 10, 2018
- Extreme Cold/Wind Chill, January 1, 2018
- Extreme Cold/Wind Chill, December 30, 2017
- Cold/Wind Chill, December 25, 2017
- Winter Weather, December 21, 2017
- Hail, September 19, 2017
- Hail, July 19, 2017
- Hail, July 11, 2017
- Hail, July 9, 2017
- Hail, June 13, 2017
- Winter Storm, February 23, 2017
- Winter Storm, January 24, 2017
- High Wind, December 25, 2016
- Cold/Wind Chill, December 17, 2016
- Winter Storm, December 16, 2016
- Blizzard, November 17, 2016
- Excessive Heat, July 19, 2016
- Flash Flood, June 17, 2016
- Excessive Heat, June 10, 2016
- Hail, May 25, 2016
Earlier years, state by state:
More
Tornadoes in Gregory CountyEvery warning in Gregory 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.