305
Recorded events
14
Counties affected
3
Direct deaths
$49.5M
Property damage
Arizona tornado history: 305 recorded events across 14 counties between 1952 and 2026.
Decade by decade
Arizona tornado history by decade
The 1990s are the busiest decade on record with 55 reported tornado events across Arizona. Earlier decades are thinner because systematic reporting for this hazard expanded over time, not because the weather was calmer.
County ranking
Counties with the most tornado events in Arizona
| Rank | County | Events | Deaths | Damage | Span |
|---|---|---|---|---|---|
| #1 | Maricopa County | 73 | 0 | $37.6M | 1955–2025 |
| #2 | Coconino County | 48 | 0 | $2.0M | 1957–2024 |
| #3 | Pinal County | 30 | 0 | $3.7M | 1960–2024 |
| #4 | Pima County | 30 | 3 | $4.2M | 1954–2026 |
| #5 | Yavapai County | 29 | 0 | $782K | 1952–2025 |
| #6 | Navajo County | 23 | 0 | $13K | 1960–2025 |
| #7 | Mohave County | 18 | 0 | $573K | 1972–2022 |
| #8 | Cochise County | 18 | 0 | $350K | 1956–2024 |
| #9 | Apache County | 17 | 0 | $0 | 1957–2025 |
| #10 | Yuma County | 12 | 0 | $283K | 1959–2018 |
| #11 | Gila County | 4 | 0 | $25K | 1966–2023 |
| #12 | Santa Cruz County | 1 | 0 | $0 | 2012–2012 |
| #13 | Graham County | 1 | 0 | $0 | 2015–2015 |
| #14 | La Paz County | 1 | 0 | $0 | 2018–2018 |
Significant events
Deadliest tornado events in Arizona
| Date | County | Scale | Deaths | Injuries |
|---|---|---|---|---|
| Aug 27, 1964 | Pima County | F2 | 2 | 9 |
| Jun 23, 1974 | Pima County | F1 | 1 | 40 |