Tornadoes in Hamilton County
The Storm Prediction Center records 58 tornadoes whose paths touched Hamilton County, Iowa between 1953 and 2024. They killed 2 people and injured 13. The busiest month is June, with 14 tornadoes. The strongest was an F4 on 24 May 1989. The most recent was on 24 May 2024.
- 58tornadoes
- 2deaths
- 13injuries
- 1,006per 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 Hamilton County?
| Rating | Tornadoes | Share |
|---|---|---|
| F0 / EF0 | 28 | 48% |
| F1 / EF1 | 19 | 33% |
| F2 / EF2 | 8 | 14% |
| F3 / EF3 | 2 | 3% |
| F4 / EF4 | 1 | 2% |
| F5 / EF5 | 0 | 0% |
| Unknown rating | 0 | 0% |
Hamilton 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 |
|---|---|
| 1950s | 3 |
| 1960s | 4 |
| 1970s | 4 |
| 1980s | 5 |
| 1990s | 9 |
| 2000s | 13 |
| 2010s | 12 |
| 2020s | 8 |
Show the numbers
| Period | Count |
|---|---|
| Jan | 0 |
| Feb | 0 |
| Mar | 2 |
| Apr | 4 |
| May | 8 |
| Jun | 14 |
| Jul | 9 |
| Aug | 11 |
| Sep | 1 |
| Oct | 2 |
| Nov | 3 |
| Dec | 4 |
Records for Hamilton County
- Deadliest: Boxholm, Iowa tornado12 November 2005, F3, 1 death, 3 injuries, 17.6 miles long
- Strongest: Stanhope, Iowa tornado24 May 1989, F4, 66 miles long
- Longest path: Gilbert, Iowa tornado20 May 1953, F3, 1 death, 116.1 miles long
- Most recent: Iowa tornado24 May 2024, EF1, 2.9 miles long
Notable tornadoes in Hamilton County
- Gilbert, Iowa tornado20 May 1953, F3, 1 death, 116.1 miles long
- Boxholm, Iowa tornado12 November 2005, F3, 1 death, 3 injuries, 17.6 miles long
- Stanhope, Iowa tornado24 May 1989, F4, 66 miles long
Many of these tornadoes killed or injured people. The numbers are the official record's, and they may be revised.