113
Recorded events
0
Direct deaths
0
Direct injuries
$75K
Property damage
Flash Flood in Navajo County, Arizona: 113 recorded events between 1997 and 2025. The strongest on record measured 0. That places the county #134 nationally and #10 statewide for this hazard.
Decade by decade
Flash Flood in Navajo County, Arizona: events per decade
Reporting practice changed over time — early decades are undercounted, not calmer.
The busiest decade for flash flood in Navajo County is the 2010s, when 39 of the county's 113 recorded events were logged. Comparing decades is useful for spotting active periods, but the earliest years are thin because systematic reporting for this hazard began later.
Within the Navajo County archive, flash flood makes up 33.2% of all recorded severe weather across 9 hazard types. Nationally the county sits at #134 for this hazard and #10 within Arizona, putting it in the 95.7 percentile of all U.S. counties.
Seasonality
Events by month
Jul is the peak month for flash flood in Navajo County with 55 recorded events, while Feb is the quietest. Seasonality here is a property of the archive as much as the climate: reports cluster where population and spotter networks are densest.
Most recent
Latest recorded events
| Date | Location | Magnitude | Damage |
|---|---|---|---|
| Sep 3, 2025 | KAYENTA ARPT | 0 | $0 |
| Jul 16, 2025 | WINSLOW | 0 | $0 |
| Jul 2, 2025 | WOODRUFF | 0 | $0 |
| Aug 12, 2024 | HEBER | 0 | $0 |
| Sep 11, 2022 | CASTLE BUTTE | 0 | $0 |
| Aug 25, 2022 | JADITO | 0 | $0 |
| Aug 19, 2022 | HOLBROOK ARPT | 0 | $0 |
| Aug 15, 2022 | PINON | 0 | $0 |
| Aug 13, 2022 | HOTEVILA | 0 | $0 |
| Aug 11, 2022 | TEES TO | 0 | $30K |
Other hazards here
More from Navajo County
- Hail 58
- Heavy Rain 53
From the record
What the reports say
Written by National Weather Service staff at the time of the event · public domain
Flash flooding was reported along Indian Reservation Route 60 just northwest of Dilkon. Strong thunderstorms with heavy rain 5 miles northeast of Dilkon, produced heavy runoff in Dilkon. Several washes and drainage ditches flooded sending up to 5 foot deep water through the Navajo Tribal Utilities Administration office and maintenance yard and flooding route 60. About 100 feet of chain link fence was destroyed and several vehicles suffered water damage. Twelve 30 foot long telephone poles that were stored in the maintenance yard were carried across the yard and into the fence.
A video on social media showed flooding outside of a hose near Hotevilla. Another video showed water up to the road on Route 2 just south of Kykotsmovi Village. Hopi Police reported that water covered Highway 264 for a distance of 100 yards near mile marker 369 at 725 PM MST. Arizona Department of Transportation had to send crews out to removed mud from the flood.
Pictures on social media show at least 10 inches of water flowing in Dinnebito Wash near Hardrock. The water had been flowing for at least 2 hours. Road going into Hardrock were not passible due to the water flowing over the roadways.
Quick answers
Frequently asked
How many flash flood events are on record in Navajo County, Arizona?
113 flash flood events are recorded in Navajo County between 1997 and 2025, causing 0 direct deaths.
What is the strongest flash flood recorded in Navajo County?
The strongest flash flood on record in Navajo County measured 0.
Where does the flash flood data for Navajo County come from?
All events come from the NOAA/NCEI Storm Events Database, the federal public-domain archive of severe weather reports. Dates are UTC, damage is as reported and not inflation-adjusted, and the most recent entries may still be revised.
Cite this page
“Flash Flood in Navajo County, Arizona.” Severe Weather History. severeweatherhistory.com/county/arizona/navajo-county/flash-flood/ · Data: NOAA/NCEI, FEMA, U.S. Census — public domain.