Tornadoes in Jefferson County
The Storm Prediction Center records 17 tornadoes whose paths touched Jefferson County, Pennsylvania between 1954 and 2021. They killed 2 people and injured 14. The busiest month is July, with 5 tornadoes. The strongest was an F2 on 11 July 1976. The most recent was on 16 October 2021.
- 17tornadoes
- 2deaths
- 14injuries
- 261per 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 Jefferson County?
| Rating | Tornadoes | Share |
|---|---|---|
| F0 / EF0 | 4 | 24% |
| F1 / EF1 | 9 | 53% |
| F2 / EF2 | 4 | 24% |
| F3 / EF3 | 0 | 0% |
| F4 / EF4 | 0 | 0% |
| F5 / EF5 | 0 | 0% |
| Unknown rating | 0 | 0% |
Jefferson County tornadoes over time
The 2020s only run to 2021, so that bar is for a shorter period. The record starts in 1950.
Show the numbers
| Period | Count |
|---|---|
| 1950s | 1 |
| 1960s | 1 |
| 1970s | 3 |
| 1980s | 1 |
| 1990s | 4 |
| 2000s | 1 |
| 2010s | 5 |
| 2020s | 1 |
Show the numbers
| Period | Count |
|---|---|
| Jan | 0 |
| Feb | 0 |
| Mar | 0 |
| Apr | 0 |
| May | 1 |
| Jun | 3 |
| Jul | 5 |
| Aug | 5 |
| Sep | 0 |
| Oct | 3 |
| Nov | 0 |
| Dec | 0 |
Records for Jefferson County
- Deadliest and Strongest and Longest path: Pennsylvania tornado11 July 1976, F2, 1 death, 7 injuries, 28.7 miles long
- Most recent: Pennsylvania tornado16 October 2021, EF1, 1 death, 1 injury, 1.2 miles long
Many of these tornadoes killed or injured people. The numbers are the official record's, and they may be revised.