NHC HURDAT2 · SPC Tornado Database
Hurricanes and Tornadoes That Hit Dewey, AZ
Every tropical system within 75 miles since 1851 and every tornado within 25 miles since 1950.
Data: NOAA NHC HURDAT2 and NOAA SPC tornado and hail reports, through 2025 · Updated
No tropical storm or hurricane has passed within 75 miles of Dewey, Arizona since records began in 1851. Since 1950, 21 tornadoes have touched down within 25 miles, 1 of them rated EF3 or stronger.
- Hurricanes
- 0
- Tropical storms
- 0
- Tornadoes
- 21
- EF3 or stronger
- 1
within 75 mi, since 1851
below hurricane strength
within 25 mi, since 1950
no recorded deaths
What the records show for Dewey
The strongest of the 21 tornadoes within 25 miles was an F3 on August 10, 1972; its path came within 21 miles. Of the 21, 2 had paths within 5 miles of the city centre, and 9 have come since 2000. August and September have had the most tornadoes, 6 each. The most recent tornado was on May 6, 2025. Dewey has more tornadoes within 25 miles than 70% of the 134 Arizona cities on this site. Hail has been reported within 10 miles 17 times since 1995, with stones up to 4.5 inches (grapefruit size). Dewey has more hail reports within 10 miles than 68% of the 134 Arizona cities.
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Tornadoes within 25 miles of Dewey
By decade
- 2020s5
- 2010s2
- 2000s2
- 1990s6
- 1970s2(1 EF3+)
- 1960s2
- 1950s2
| Date | Rating | Distance | Path | Killed / injured |
|---|---|---|---|---|
| Aug 10, 1972 | F3 | 21 mi | 0.1 mi | 0 / 0 |
| May 16, 1993 | F2 | 20 mi | 0.3 mi | 0 / 0 |
| Sep 13, 1996 | F1 | 19 mi | 4 mi | 0 / 0 |
| Nov 2, 1959 | F1 | 12 mi | 0.1 mi | 0 / 0 |
| May 6, 2025 | EF0 | 9 mi | 0.14 mi | 0 / 0 |
| Sep 9, 2023 | EF0 | 20 mi | 0.1 mi | 0 / 0 |
| Jul 17, 2023 | EF0 | 12 mi | 5.47 mi | 0 / 0 |
| Jun 25, 2022 | EF0 | 13 mi | 0.1 mi | 0 / 0 |
| Jul 11, 2021 | EF0 | 19 mi | 0.7 mi | 0 / 0 |
| Sep 27, 2014 | EF0 | 12 mi | 2.1 mi | 0 / 0 |
| Oct 6, 2010 | EF0 | 22 mi | 4 mi | 0 / 0 |
| Jul 16, 2006 | F0 | 23 mi | 0.1 mi | 0 / 0 |
The strongest 12 of 21, by rating and then by deaths. Ratings before February 2007 are on the original Fujita scale.
Hail in Dewey
The Storm Prediction Center has 17 hail reports within 10 miles of Dewey since 1995. Of these, 8 were 1 inch across or larger, and one reached 2 inches. The largest, 4.5 inches (grapefruit size), fell on September 28, 1995. The most recent report is from July 3, 2025. July has the most reports, 7.
Source: NOAA Storm Prediction Center severe weather reports, data through 2025.
Weather by month in Dewey
The nearest NOAA station with 1991–2020 climate normals is Prescott, AZ, 13 miles west of Dewey at 5,205 feet. July is the warmest, with an average high of 90°F and low of 61°F; December is the coolest, at 52°F and 24°F. August is the wettest at 2.8 inches of precipitation on average and June the driest at 0.2 inches; the year adds up to 16.6 inches over 36 days with at least a tenth of an inch. Highs reach 90°F on about 44 days a year, almost all from May to September. Lows fall below freezing on about 128 nights a year. Snowfall averages 10.2 inches a year, most of it in February. That 16.6 inches is more than at 63 of the 76 Arizona stations used on this site (83%). Prescott Valley, 9 miles northwest, has its own station (Prescott Love Field, AZ): 13.1 inches a year, 3.5 less than here, and the same July average high, 90°F.
| Month | High °F | Low °F | Precip. in | Days ≥ 0.1" | Snow in |
|---|---|---|---|---|---|
| Jan | 53 | 24 | 1.5 | 3 | 1.9 |
| Feb | 55 | 26 | 1.8 | 4 | 3.1 |
| Mar | 61 | 32 | 1.5 | 3 | 2.5 |
| Apr | 68 | 37 | 0.6 | 2 | 0.4 |
| May | 76 | 45 | 0.5 | 2 | 0.0 |
| Jun | 87 | 54 | 0.2 | 1 | 0.0 |
| Jul | 90 | 61 | 2.7 | 6 | 0.0 |
| Aug | 87 | 60 | 2.8 | 6 | 0.0 |
| Sep | 82 | 52 | 1.6 | 3 | 0.0 |
| Oct | 73 | 40 | 1.0 | 2 | 0.0 |
| Nov | 62 | 30 | 0.9 | 2 | 0.9 |
| Dec | 52 | 24 | 1.5 | 3 | 1.4 |
| Year | 70 | 40 | 16.6 | 36 | 10.2 |
Averages for 1991–2020 at Prescott, AZ (5,205 ft), from NOAA NCEI U.S. Climate Normals. Normals describe the station; the farther a place is from it, and the bigger the difference in height, the more its weather can differ.
Floods, thunderstorm wind and lightning near Dewey
Since 1996, the National Weather Service has logged 68 flood, rain, thunderstorm wind and lightning events that began within 10 miles of Dewey: 48 flash floods, 11 heavy rain events, 8 thunderstorm wind reports and 1 flood. None is recorded as killing or injuring anyone; the NWS estimated $7.0 million in property and crop damage. The strongest thunderstorm gust on record here was 70 mph, on May 28, 2003. July has had the most flash floods, 24 of 48. Of the 130 Arizona cities on this site with a flash flood on record, 110 have had fewer than Dewey.
July 19, 2017: flash flood 9 miles from the centre of Dewey — $7.0 million damage.
Source: NOAA NCEI Storm Events Database, events whose starting point is on record, 1996 to June 30, 2026. Damage is the NWS estimate in the dollars of the year, not insured losses, and NWS notes that some reports are unverified.
Flood insurance claims, disaster declarations and FEMA risk ratings
Yavapai County, which includes Dewey, has been named in 26 federal disaster or emergency declarations since 1977, 10 of them major disasters (by incident: 13 fires, 5 floods, 4 severe storms, 2 biological emergencies). The latest major disaster declaration was Covid-19 Pandemic, on April 4, 2020. FEMA's National Risk Index gives Yavapai County a Relatively Moderate rating for natural hazard risk overall; by hazard: Very High for lightning; Relatively High for inland flooding; Relatively Moderate for hail and heat waves; Relatively Low for tornadoes and strong wind. It models the county's expected loss from all 18 hazards it covers at $107.8 million a year, the 5th highest of 15 Arizona counties; of the hazards above, the largest share, $69.7 million (65%), is from inland flooding.
Claims: FEMA, OpenFEMA Dataset FIMA NFIP Redacted Claims – v3, summed over ZIP codes; payments in the dollars of each year, not adjusted for inflation. Declarations: Disaster Declarations Summaries – v2, by county. Retrieved October 25, 2026. This product uses the Federal Emergency Management Agency's OpenFEMA API, but is not endorsed by FEMA. The Federal Government or FEMA cannot vouch for the data or analyses derived from these data after the data have been retrieved from the Agency's website(s).
Risk ratings: FEMA, National Risk Index county table, December 2025 (v1.20), retrieved October 26, 2026; ratings compare counties nationwide, are meant for planning and are no substitute for a local risk assessment. This product uses the Federal Emergency Management Agency's National Risk Index dataset API or downloadable datasets but is not endorsed by FEMA. The Federal Government or FEMA cannot vouch for the data or analyses derived from these data after the data have been retrieved from the Agency's website(s).
What counts as a pass, the distances and the sources: how this storm history is built.
Cities near Dewey
- Prescott Valley, AZ9 mi
- Mayer, AZ14 mi
- Cottonwood, AZ17 mi
- Prescott, AZ18 mi
- Clarkdale, AZ18 mi
- Camp Verde, AZ21 mi
- Chino Valley, AZ22 mi
- Cornville, AZ22 mi
- Kirkland, AZ25 mi
- Rimrock, AZ27 mi
- Paulden, AZ30 mi
- Black Canyon City, AZ30 mi
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