Tornadoes in Deuel County
The Storm Prediction Center records 42 tornadoes whose paths touched Deuel County, South Dakota between 1961 and 2025. They killed 1 person and injured 10. The busiest month is May, with 15 tornadoes. The strongest was an F3 on 21 June 1961. The most recent was on 28 June 2025.
- 42tornadoes
- 1death
- 10injuries
- 674per 10,000 sq mi of land
A tornado that crossed several counties counts in each one, so county counts add up to more than the state's.
How strong were the tornadoes in Deuel County?
| Rating | Tornadoes | Share |
|---|---|---|
| F0 / EF0 | 21 | 50% |
| F1 / EF1 | 11 | 26% |
| F2 / EF2 | 7 | 17% |
| F3 / EF3 | 3 | 7% |
| F4 / EF4 | 0 | 0% |
| F5 / EF5 | 0 | 0% |
| Unknown rating | 0 | 0% |
Deuel County tornadoes over time
The 2020s only run to 2025, so that bar is for a shorter period. The record starts in 1950.
Show the numbers
| Period | Count |
|---|---|
| 1960s | 2 |
| 1970s | 9 |
| 1980s | 5 |
| 1990s | 6 |
| 2000s | 2 |
| 2010s | 2 |
| 2020s | 16 |
Show the numbers
| Period | Count |
|---|---|
| Jan | 0 |
| Feb | 0 |
| Mar | 0 |
| Apr | 1 |
| May | 15 |
| Jun | 10 |
| Jul | 6 |
| Aug | 6 |
| Sep | 1 |
| Oct | 3 |
| Nov | 0 |
| Dec | 0 |
Records for Deuel County
- Deadliest and Strongest and Longest path: Groton, South Dakota tornado21 June 1961, F3, 1 death, 7 injuries, 156.3 miles long
- Most recent: South Dakota tornado28 June 2025, EF3, 2 injuries, 9.7 miles long
Notable tornadoes in Deuel County
- Groton, South Dakota tornado21 June 1961, F3, 1 death, 7 injuries, 156.3 miles long
Many of these tornadoes killed or injured people. The numbers are the official record's, and they may be revised.