Tornadoes in Frederick County
The Storm Prediction Center records 39 tornadoes whose paths touched Frederick County, Maryland between 1952 and 2021. None of them is recorded as having killed anyone. The busiest month is May, with 9 tornadoes. The strongest was an F3 on 22 May 1983. The most recent was on 3 May 2021.
- 39tornadoes
- 0deaths
- 1injury
- 590per 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 Frederick County?
| Rating | Tornadoes | Share |
|---|---|---|
| F0 / EF0 | 11 | 28% |
| F1 / EF1 | 25 | 64% |
| F2 / EF2 | 2 | 5% |
| F3 / EF3 | 1 | 3% |
| F4 / EF4 | 0 | 0% |
| F5 / EF5 | 0 | 0% |
| Unknown rating | 0 | 0% |
Frederick 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 | 3 |
| 1960s | 5 |
| 1970s | 3 |
| 1980s | 2 |
| 1990s | 7 |
| 2000s | 9 |
| 2010s | 7 |
| 2020s | 3 |
Show the numbers
| Period | Count |
|---|---|
| Jan | 0 |
| Feb | 2 |
| Mar | 1 |
| Apr | 6 |
| May | 9 |
| Jun | 7 |
| Jul | 5 |
| Aug | 3 |
| Sep | 3 |
| Oct | 2 |
| Nov | 1 |
| Dec | 0 |
Records for Frederick County
- Strongest: Maryland tornado22 May 1983, F3, 2 miles long
- Longest path: Maryland tornado19 July 1963, F1, 14.4 miles long
- Most recent: Maryland tornado3 May 2021, EF0, 0.6 miles long
Many of these tornadoes killed or injured people. The numbers are the official record's, and they may be revised.