Tornadoes in Pima County
The Storm Prediction Center records 29 tornadoes whose paths touched Pima County, Arizona between 1954 and 2025. They killed 3 people and injured 53. The busiest month is July, with 9 tornadoes. The strongest was an F2 on 27 August 1964. The most recent was on 16 September 2025.
- 29tornadoes
- 3deaths
- 53injuries
- 32per 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 Pima County?
| Rating | Tornadoes | Share |
|---|---|---|
| F0 / EF0 | 14 | 48% |
| F1 / EF1 | 10 | 34% |
| F2 / EF2 | 2 | 7% |
| F3 / EF3 | 0 | 0% |
| F4 / EF4 | 0 | 0% |
| F5 / EF5 | 0 | 0% |
| Unknown rating | 3 | 10% |
Pima 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 |
|---|---|
| 1950s | 1 |
| 1960s | 4 |
| 1970s | 5 |
| 1980s | 2 |
| 1990s | 5 |
| 2000s | 3 |
| 2010s | 3 |
| 2020s | 6 |
Show the numbers
| Period | Count |
|---|---|
| Jan | 0 |
| Feb | 0 |
| Mar | 2 |
| Apr | 1 |
| May | 0 |
| Jun | 3 |
| Jul | 9 |
| Aug | 9 |
| Sep | 3 |
| Oct | 1 |
| Nov | 0 |
| Dec | 1 |
Records for Pima County
- Deadliest and Strongest: Arizona tornado27 August 1964, F2, 2 deaths, 9 injuries, 0.1 miles long
- Longest path: Arizona tornado2 July 2024, EF1, 3.3 miles long
- Most recent: Arizona tornado16 September 2025, Unknown rating, 0 miles long
Many of these tornadoes killed or injured people. The numbers are the official record's, and they may be revised.