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Tornado in Coconino County, Arizona
48 tornadoes events in the NCEI Storm Events record, 1950 to 2026. Event types counted: Tornado.
NCEI notes that Storm Data is compiled from a variety of sources including the National Weather Service, other federal, state and local agencies, the media and the public; that property and crop damage figures are estimates; and that some events are recorded by NWS forecast zone rather than by county. FEMA notes that NFIP claim records are redacted and aggregated to protect the privacy of policyholders. Storm records through 30 Jun 2026.
Coconino County, Arizona, has 48 tornado events in the NCEI record since 1950, with at least one in 24 different years.
October is the busiest month, with 19 of the recorded events. The last 20 years account for 24 events against 16 in the 20 years before, a change that reflects reporting practice as much as weather.
The county holds 15.7% of the 306 tornado events recorded in Arizona; its 0.3 per 100 square miles compares with 0.3 statewide.
By rating: 27 at (E)F0, 6 at (E)F1, 6 at (E)F2, 2 at (E)F3, 0 at (E)F4, 0 at (E)F5 and 7 unrated. Tornadoes before 2007 carry the original Fujita rating.
Compared with Arizona
| Measure | Coconino County | Arizona | US |
|---|---|---|---|
| Tornado events since 1950 | 48 | 306 | 81,281 |
| Per 100 square miles | 0.3 | 0.3 | 2.3 |
| Per 10,000 residents | 3.3 | 0.4 | 2.4 |
| Deaths recorded | 0 | 3 | 6,410 |
| Busiest month | October | July | May |
By year
Seasonality
0Feb
0Mar
1Apr
2May
7Jun
2Jul
5Aug
7Sep
4Oct
19Nov
1Dec
0
Magnitude distribution
Enhanced Fujita scale wind estimates
- EF0/F0
- 65–85 mph (EF0)
- EF1/F1
- 86–110 mph (EF1)
- EF2/F2
- 111–135 mph (EF2)
- EF3/F3
- 136–165 mph (EF3)
- EF4/F4
- 166–200 mph (EF4)
- EF5/F5
- over 200 mph (EF5)
- Unrated
- no rating recorded
Tornado rating as recorded (Fujita scale before February 2007, Enhanced Fujita after).
Recorded events
All 48 events, most recent first. Magnitude is hail size, tornado rating or wind speed as recorded.
| Date | Event type | Magnitude | Property damage | Crop damage | Deaths | Injuries | Geography |
|---|---|---|---|---|---|---|---|
| 18 Oct 2024 | Tornado | EF0 | — | — | — | — | County |
| 13 May 2024 | Tornado | EF0 | — | — | — | — | County |
| 8 Aug 2023 | Tornado | EF0 | — | — | — | — | County |
| 3 Oct 2022 | Tornado | EF1 | $350K | — | — | — | County |
| 23 Jun 2022 | Tornado | EF0 | — | — | — | — | County |
| 10 Jul 2021 | Tornado | EF1 | — | — | — | — | County |
| 29 Jun 2021 | Tornado | EF0 | — | — | — | — | County |
| 20 May 2019 | Tornado | EF0 | — | — | — | — | County |
| 21 Oct 2018 | Tornado | EF0 | — | — | — | — | County |
| 18 Aug 2018 | Tornado | EF0 | — | — | — | — | County |
| 14 Sep 2011 | Tornado | EF2 | — | — | — | — | County |
| 6 Oct 2010 | Tornado | EF2 | — | — | — | — | County |
| 6 Oct 2010 | Tornado | EF1 | — | — | — | — | County |
| 6 Oct 2010 | Tornado | EF0 | — | — | — | — | County |
| 6 Oct 2010 | Tornado | EF2 | — | — | — | — | County |
| 6 Oct 2010 | Tornado | EF2 | $1.0M | — | — | 7 | County |
| 6 Oct 2010 | Tornado | EF3 | $400K | — | — | — | County |
| 6 Oct 2010 | Tornado | EF2 | — | — | — | — | County |
| 6 Oct 2010 | Tornado | EF1 | — | — | — | — | County |
| 6 Oct 2010 | Tornado | EF3 | $200K | — | — | — | County |
| 6 Oct 2010 | Tornado | EF0 | — | — | — | — | County |
| 22 May 2009 | Tornado | EF0 | — | — | — | — | County |
| 22 May 2009 | Tornado | EF0 | — | — | — | — | County |
| 16 Aug 2008 | Tornado | EF0 | — | — | — | — | County |
| 14 Oct 2006 | Tornado | F1 | — | — | — | — | County |
| 19 Mar 2006 | Tornado | F0 | — | — | — | — | County |
| 18 Oct 2005 | Tornado | F0 | $10K | — | — | — | County |
| 18 Oct 2005 | Tornado | F0 | — | — | — | — | County |
| 9 Sep 2003 | Tornado | F0 | — | — | — | — | County |
| 6 May 2003 | Tornado | F0 | — | — | — | — | County |
| 16 Sep 1999 | Tornado | F0 | — | — | — | — | County |
| 14 May 1998 | Tornado | F0 | — | — | — | — | County |
| 12 Sep 1997 | Tornado | F0 | — | — | — | — | County |
| 23 Apr 1997 | Tornado | F0 | $2K | — | — | — | County |
| 23 Apr 1997 | Tornado | F0 | — | — | — | — | County |
| 11 Jul 1995 | Tornado | — | — | — | — | — | County |
| 24 Oct 1992 | Tornado | F2 | $25K | — | — | — | County |
| 24 Oct 1992 | Tornado | F0 | — | — | — | — | County |
| 24 Oct 1992 | Tornado | F0 | — | — | — | — | County |
| 31 Aug 1992 | Tornado | F0 | — | — | — | — | County |
| 1 May 1980 | Tornado | F1 | — | — | — | — | County |
| 1 Nov 1968 | Tornado | — | — | — | — | — | County |
| 20 Jul 1968 | Tornado | — | — | — | — | — | County |
| 8 Aug 1967 | Tornado | — | — | — | — | — | County |
| 30 Jul 1966 | Tornado | F0 | — | — | — | — | County |
| 24 Jul 1958 | Tornado | — | $3K | — | — | — | County |
| 20 Aug 1957 | Tornado | — | $30 | — | — | — | County |
| 18 Aug 1957 | Tornado | — | $30 | — | — | — | County |
Questions and answers
How many tornado events has Coconino County had?
48 events in the NCEI Storm Events record between 1950 and 2026. Reporting of tornadoes became far more complete after 1996, so early decades undercount.
When was the last recorded tornado event in Coconino County?
18 Oct 2024 (Tornado, EF0). Records reach NCEI about 120 days after the month ends.
What was the most damaging tornado event recorded in Coconino County?
The tornado of 6 Oct 2010, with property damage estimated by NCEI at $1.0M.
How does Coconino County compare with Arizona for tornado?
0.3 events per 100 square miles against 0.3 statewide; the county holds 48 of the state's 306 recorded events.
Provenance
NOAA NCEI Storm Events Database, yearly details files through 30 Jun 2026, public domain. County-recorded events plus zone-recorded events whose forecast zone is named for the county (marked "Forecast zone"). Population and area from the US Census Bureau (2021). Built 1 Oct 2026. See the methodology, the Tornado hub and the county page.