Tornadoes in Dewey County
The Storm Prediction Center records 55 tornadoes whose paths touched Dewey County, Oklahoma between 1950 and 2019. They killed 1 person and injured 9. The busiest month is May, with 21 tornadoes. The strongest was an EF3 on 24 May 2011. The most recent was on 15 June 2019.
- 55tornadoes
- 1death
- 9injuries
- 550per 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 Dewey County?
| Rating | Tornadoes | Share |
|---|---|---|
| F0 / EF0 | 24 | 44% |
| F1 / EF1 | 19 | 35% |
| F2 / EF2 | 9 | 16% |
| F3 / EF3 | 2 | 4% |
| F4 / EF4 | 0 | 0% |
| F5 / EF5 | 0 | 0% |
| Unknown rating | 1 | 2% |
Dewey County tornadoes over time
The 2010s only run to 2019, so that bar is for a shorter period. The record starts in 1950.
Show the numbers
| Period | Count |
|---|---|
| 1950s | 14 |
| 1960s | 13 |
| 1970s | 5 |
| 1980s | 5 |
| 1990s | 6 |
| 2000s | 5 |
| 2010s | 7 |
Show the numbers
| Period | Count |
|---|---|
| Jan | 0 |
| Feb | 0 |
| Mar | 4 |
| Apr | 11 |
| May | 21 |
| Jun | 6 |
| Jul | 3 |
| Aug | 2 |
| Sep | 6 |
| Oct | 2 |
| Nov | 0 |
| Dec | 0 |
Records for Dewey County
- Deadliest and Strongest: Canton, Oklahoma tornado24 May 2011, EF3, 1 death, 2 injuries, 13.2 miles long
- Longest path: Oklahoma tornado8 April 1952, F0, 45.9 miles long
- Most recent: Oklahoma tornado15 June 2019, EF1, 3.2 miles long
Notable tornadoes in Dewey County
- Canton, Oklahoma tornado24 May 2011, EF3, 1 death, 2 injuries, 13.2 miles long
Many of these tornadoes killed or injured people. The numbers are the official record's, and they may be revised.