Pima County, Arizona tornadoes

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28 confirmed tornadoes since NOAA records began in 1950 (the first here in 1954). Most recent: September 16, 2025, EFU. 2026 so far: 2 preliminary reports preliminary

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Every tornado path in the county

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(E)F0(E)F1(E)F2(E)F3(E)F4(E)F5Unrated

Each path is a straight line from where the tornado started to where it ended, which is all most NOAA records hold. Tap a path for its details.

At a glance

Total281950 to 2025
Per year0.4average since 1950
Peak monthJuly9 of 28
StrongestF2Aug 27, 1964
Deaths3whole paths, see note
Injuries53whole paths, see note

Deaths and injuries are NOAA's totals for each tornado's whole path, which can extend beyond Pima County.

When tornadoes hit here

By month

90 Jan: 0Feb: 0Mar: 2Apr: 0May: 0Jun: 3Jul: 9Aug: 9Sep: 3Oct: 1Nov: 0Dec: 1JanFebMarAprMayJunJulAugSepOctNovDec

July is the peak month, with 9 of 28 tornadoes.

By time of day

60 12 AM: 0: 0: 03 AM: 0: 0: 06 AM: 0: 0: 09 AM: 0: 0: 112 PM: 3: 0: 23 PM: 4: 2: 66 PM: 2: 2: 39 PM: 1: 1: 112 AM3 AM6 AM9 AM12 PM3 PM6 PM9 PM

Most often around 5:00 PM. Times as recorded by NOAA, mostly Central Standard Time.

By year, 1950 to 2025

30 1950: 0: 0: 0: 0: 1: 0: 0: 0: 0: 01960: 0: 1: 0: 0: 1: 0: 0: 0: 0: 21970: 0: 1: 0: 0: 3: 1: 0: 0: 0: 01980: 0: 0: 0: 0: 2: 0: 0: 0: 0: 01990: 0: 1: 1: 0: 2: 0: 1: 0: 0: 02000: 0: 0: 0: 0: 0: 1: 1: 0: 0: 02010: 0: 0: 0: 0: 0: 1: 0: 1: 0: 12020: 0: 1: 1: 1: 1: 219501960197019801990200020102020

The line is the five-year average. Tornadoes before about 1953 were under-reported, and better radar since the 1990s finds more weak ones. This year so far: 2 preliminary reports.

By rating

EF0
13
EF1
10
EF2
2
Unknown
3

Ratings before February 2007 use the original F scale; the numbers line up with today's EF scale. Unknown means NOAA could not assign a rating.

Notable tornadoes

Deadliest

F2, August 27, 1964

2 deaths, 9 injuries Strongest

F2, August 27, 1964

0.1 mile path Longest path

3.25 miles, EF1

July 2, 2024, whole path Widest

150 yards, EF1

July 2, 2024

All 28 tornadoes, newest first

DateRatingPath lengthWidthDeathsInjuries
Sep 16, 2025EFU0.01 mi1 yd00
Sep 12, 2025EFU0.01 mi1 yd00
Jul 2, 2024EF13.25 mi150 yd00
Aug 13, 2023EF00.1 mi25 yd00
Aug 25, 2022EF00.05 mi10 yd00
Jul 2, 2021EFU0.59 mi10 yd00
Aug 10, 2019EF00.17 mi10 yd00
Jul 14, 2017EF00.11 mi10 yd00
Aug 29, 2015EF00.43 mi15 yd00
Oct 8, 2006F00.03 mi12 yd00
Jul 31, 2005F00.5 mi2 yd00
Aug 14, 1996F01 mi10 yd00
Jul 28, 1994F22 mi23 yd00
Mar 7, 1994F00.1 mi10 yd00
Jul 6, 1992F12.8 mi10 yd01
Aug 24, 1991F11 mi20 yd02
Jul 16, 1984F10.1 mi20 yd00
Jul 16, 1984F10.1 mi20 yd00
Dec 23, 1975F12 mi33 yd00
Jun 23, 1974F02 mi20 yd00
Jun 23, 1974F11 mi50 yd140
Jun 17, 1974F00.5 mi30 yd00
Sep 1, 1971F10.1 mi10 yd00
Aug 16, 1969F11 mi10 yd00
Aug 1, 1969F00.1 mi10 yd00

2026 preliminary reports not yet confirmed

Report dateLocationRating
Aug 21, 20266 SSE TucsonNot yet rated
Jan 1, 20265 NNE Three PointsNot yet rated

Preliminary reports from the Storm Prediction Center. One tornado can be reported more than once, and NOAA confirms the final record months later.

Nearby counties

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Source: NOAA Storm Prediction Center severe weather database, 1950 to 2025, and SPC preliminary reports for 2026. Page built October 12, 2026.