Tornadoes in McHenry County
The Storm Prediction Center records 40 tornadoes whose paths touched McHenry County, North Dakota between 1965 and 2025. None of them is recorded as having killed anyone. The busiest month is June, with 16 tornadoes. The strongest was an F2 on 6 June 1982. The most recent was on 14 September 2025.
- 40tornadoes
- 0deaths
- 0injuries
- 213per 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 McHenry County?
| Rating | Tornadoes | Share |
|---|---|---|
| F0 / EF0 | 26 | 65% |
| F1 / EF1 | 6 | 15% |
| F2 / EF2 | 1 | 3% |
| F3 / EF3 | 0 | 0% |
| F4 / EF4 | 0 | 0% |
| F5 / EF5 | 0 | 0% |
| Unknown rating | 7 | 18% |
McHenry County tornadoes over time
The 2020s only run to 2025, so that bar is for a shorter period. The record starts in 1950.
Show the numbers
| Period | Count |
|---|---|
| 1960s | 1 |
| 1970s | 3 |
| 1980s | 7 |
| 1990s | 11 |
| 2000s | 8 |
| 2010s | 3 |
| 2020s | 7 |
Show the numbers
| Period | Count |
|---|---|
| Jan | 0 |
| Feb | 0 |
| Mar | 0 |
| Apr | 0 |
| May | 4 |
| Jun | 16 |
| Jul | 6 |
| Aug | 9 |
| Sep | 5 |
| Oct | 0 |
| Nov | 0 |
| Dec | 0 |
Records for McHenry County
- Strongest: North Dakota tornado6 June 1982, F2, 10 miles long
- Longest path: North Dakota tornado25 July 1997, F0, 12 miles long
- Most recent: North Dakota tornado14 September 2025, Unknown rating, 0.2 miles long
Many of these tornadoes killed or injured people. The numbers are the official record's, and they may be revised.