Tornadoes in Clark County
The Storm Prediction Center records 41 tornadoes whose paths touched Clark County, South Dakota between 1953 and 2023. They killed 1 person and injured 9. The busiest month is June, with 15 tornadoes. The strongest was an F3 on 21 June 1961. The most recent was on 10 August 2023.
- 41tornadoes
- 1death
- 9injuries
- 428per 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 Clark County?
| Rating | Tornadoes | Share |
|---|---|---|
| F0 / EF0 | 24 | 59% |
| F1 / EF1 | 8 | 20% |
| F2 / EF2 | 7 | 17% |
| F3 / EF3 | 2 | 5% |
| F4 / EF4 | 0 | 0% |
| F5 / EF5 | 0 | 0% |
| Unknown rating | 0 | 0% |
Clark County tornadoes over time
The 2020s only run to 2023, so that bar is for a shorter period. The record starts in 1950.
Show the numbers
| Period | Count |
|---|---|
| 1950s | 2 |
| 1960s | 9 |
| 1970s | 5 |
| 1980s | 4 |
| 1990s | 4 |
| 2000s | 4 |
| 2010s | 8 |
| 2020s | 5 |
Show the numbers
| Period | Count |
|---|---|
| Jan | 0 |
| Feb | 0 |
| Mar | 0 |
| Apr | 1 |
| May | 10 |
| Jun | 15 |
| Jul | 9 |
| Aug | 2 |
| Sep | 4 |
| Oct | 0 |
| Nov | 0 |
| Dec | 0 |
Records for Clark 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 tornado10 August 2023, EF0, 0.9 miles long
Notable tornadoes in Clark 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.