Tornadoes in Marion County
The Storm Prediction Center records 49 tornadoes whose paths touched Marion County, Iowa between 1962 and 2024. None of them is recorded as having killed anyone. The busiest month is May, with 20 tornadoes. The strongest was an F3 on 8 April 1999. The most recent was on 7 May 2024.
- 49tornadoes
- 0deaths
- 35injuries
- 884per 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 Marion County?
| Rating | Tornadoes | Share |
|---|---|---|
| F0 / EF0 | 18 | 37% |
| F1 / EF1 | 20 | 41% |
| F2 / EF2 | 5 | 10% |
| F3 / EF3 | 4 | 8% |
| F4 / EF4 | 0 | 0% |
| F5 / EF5 | 0 | 0% |
| Unknown rating | 2 | 4% |
Marion County tornadoes over time
The 2020s only run to 2024, so that bar is for a shorter period. The record starts in 1950.
Show the numbers
| Period | Count |
|---|---|
| 1960s | 4 |
| 1970s | 3 |
| 1980s | 8 |
| 1990s | 3 |
| 2000s | 11 |
| 2010s | 11 |
| 2020s | 9 |
Show the numbers
| Period | Count |
|---|---|
| Jan | 0 |
| Feb | 0 |
| Mar | 3 |
| Apr | 4 |
| May | 20 |
| Jun | 12 |
| Jul | 4 |
| Aug | 2 |
| Sep | 1 |
| Oct | 2 |
| Nov | 1 |
| Dec | 0 |
Records for Marion County
- Strongest and Longest path: Iowa tornado8 April 1999, F3, 5 injuries, 39 miles long
- Most recent: Iowa tornado7 May 2024, EF0, 5 miles long
Many of these tornadoes killed or injured people. The numbers are the official record's, and they may be revised.