Tornadoes in Maricopa County
The Storm Prediction Center records 75 tornadoes whose paths touched Maricopa County, Arizona between 1955 and 2025. None of them is recorded as having killed anyone. The busiest month is July, with 12 tornadoes. The strongest was an F3 on 4 August 1957. The most recent was on 18 November 2025.
- 75tornadoes
- 0deaths
- 58injuries
- 82per 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 Maricopa County?
| Rating | Tornadoes | Share |
|---|---|---|
| F0 / EF0 | 41 | 55% |
| F1 / EF1 | 25 | 33% |
| F2 / EF2 | 6 | 8% |
| F3 / EF3 | 1 | 1% |
| F4 / EF4 | 0 | 0% |
| F5 / EF5 | 0 | 0% |
| Unknown rating | 2 | 3% |
Maricopa 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 | 8 |
| 1960s | 9 |
| 1970s | 18 |
| 1980s | 8 |
| 1990s | 15 |
| 2000s | 1 |
| 2010s | 12 |
| 2020s | 4 |
Show the numbers
| Period | Count |
|---|---|
| Jan | 5 |
| Feb | 8 |
| Mar | 4 |
| Apr | 1 |
| May | 6 |
| Jun | 5 |
| Jul | 12 |
| Aug | 12 |
| Sep | 12 |
| Oct | 4 |
| Nov | 5 |
| Dec | 1 |
Records for Maricopa County
- Strongest: Arizona tornado4 August 1957, F3, 12 miles long
- Longest path: Arizona tornado1 September 1971, F1, 32.4 miles long
- Most recent: Arizona tornado18 November 2025, EF0, 1.1 miles long
Many of these tornadoes killed or injured people. The numbers are the official record's, and they may be revised.