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Flood in Iron County, Utah

53 floods and flash floods events in the NCEI Storm Events record, 1950 to 2026. Event types counted: Flood, Flash Flood, Coastal Flood, Lakeshore Flood.

53 events · 0 deaths recorded · peak month July · county share of state 3.8%

2025-07-17: Flood2024-07-25: Flood2023-08-18: Flood2023-08-17: Flood2021-08-18: Flood2021-08-18: Flood2021-08-18: Flood2021-08-01: Flood2021-07-31: Flood2021-07-26: Flood2021-07-25: Flood2021-07-25: Flood2021-07-25: Flood2021-07-20: Flood2021-07-19: Flood2021-07-18: Flood2021-07-15: Flood2021-07-14: Flood2018-07-19: Flood2018-07-13: Flood2018-07-11: Flood2018-07-09: Flood2017-08-20: Flood2017-08-06: Flood2017-08-03: Flood2017-07-24: Flood2017-07-11: Flood2013-09-11: Flood2013-07-27: Flood2012-08-17: Flood2012-07-31: Flood2012-07-30: Flood2010-08-18: Flood2007-08-26: Flood2007-08-17: Flood2005-08-08: Flood2005-07-20: Flood2005-06-03: Flood
Flood event locations in and around Iron County. Dots: Flood event locations in the kept record. Boundaries: US Census Bureau.

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.

NCEI records 53 flood events in Iron County, Utah, between 1950 and 2026, spread over 18 years.

July is the busiest month, with 29 of the recorded events. The last 20 years account for 35 events against 18 in the 20 years before, a change that reflects reporting practice as much as weather.

The county holds 3.8% of the 1,399 flood events recorded in Utah; its 1.6 per 100 square miles compares with 1.7 statewide.

Compared with Utah

MeasureIron CountyUtahUS
Flood events since 1950531,399183,559
Per 100 square miles1.61.75.2
Per 10,000 residents8.84.25.5
Deaths recorded0492,961
Busiest monthJulyAugustJune

By year

195019882026
Flood events recorded in Iron County per year, 1950 to 2026 (2026 is partial).

Seasonality

Jan
0
Feb
0
Mar
0
Apr
0
May
0
Jun
2
Jul
29
Aug
18
Sep
3
Oct
1
Nov
0
Dec
0
Flood events in Iron County by month of occurrence, all years.

Recorded events

All 53 events, most recent first. Magnitude is hail size, tornado rating or wind speed as recorded.

DateEvent typeMagnitudeProperty damageCrop damageDeathsInjuriesGeography
17 Jul 2025Flash Flood—————County
25 Jul 2024Flash Flood—$10K———County
18 Aug 2023Flash Flood—————County
17 Aug 2023Flash Flood—$1.0M———County
18 Aug 2021Flash Flood—$2K———County
18 Aug 2021Flash Flood—$200K———County
18 Aug 2021Flash Flood—$30K———County
1 Aug 2021Flash Flood—$9.0M———County
31 Jul 2021Flash Flood—$300K———County
26 Jul 2021Flash Flood—————County
25 Jul 2021Flash Flood—$300K———County
25 Jul 2021Flash Flood—$100K———County
25 Jul 2021Flash Flood—————County
20 Jul 2021Flash Flood—————County
19 Jul 2021Flash Flood—————County
18 Jul 2021Flash Flood—$30K———County
15 Jul 2021Flash Flood—$1.0M——3County
14 Jul 2021Flash Flood—$270K———County
19 Jul 2018Flash Flood—————County
13 Jul 2018Flash Flood—————County
11 Jul 2018Flash Flood—————County
9 Jul 2018Flash Flood—————County
20 Aug 2017Flash Flood—————County
6 Aug 2017Flash Flood—$50K———County
3 Aug 2017Flash Flood—————County
24 Jul 2017Flash Flood—$20K———County
11 Jul 2017Flash Flood—————County
11 Sep 2013Flash Flood—$10K———County
27 Jul 2013Flash Flood—$400K———County
17 Aug 2012Flash Flood—$1.5M———County
31 Jul 2012Flash Flood—————County
30 Jul 2012Flash Flood—————County
18 Aug 2010Flash Flood—————County
26 Aug 2007Flash Flood—$10K———County
17 Aug 2007Flash Flood—————County
31 Jul 2006Flash Flood—————County
30 Jul 2006Flash Flood—————County
19 Jul 2006Flash Flood—————County
8 Aug 2005Flash Flood—————County
20 Jul 2005Flash Flood—————County
3 Jun 2005Flash Flood—————County
21 Oct 2004Flash Flood—$400K———County
14 Jul 2004Flash Flood—$5K———County
23 Aug 2003Flash Flood—————County
23 Aug 2003Flash Flood—$25K$5K——County
30 Jul 2003Flash Flood—$1K———County
30 Jul 2003Flash Flood—————County
13 Aug 2001Flash Flood—————County
9 Aug 2001Flash Flood—$50K———County
9 Jul 2001Flash Flood—————County
23 Jun 2000Flash Flood—$50K$5K——County
1 Sep 1998Flood—$2K$1K——County
8 Sep 1997Flash Flood—$40K———County

Questions and answers

How many flood events has Iron County had?

53 events in the NCEI Storm Events record between 1950 and 2026. Reporting of floods and flash floods became far more complete after 1996, so early decades undercount.

When was the last recorded flood event in Iron County?

17 Jul 2025 (Flash Flood). Records reach NCEI about 120 days after the month ends.

What was the most damaging flood event recorded in Iron County?

The flash flood of 1 Aug 2021, with property damage estimated by NCEI at $9.0M.

How does Iron County compare with Utah for flood?

1.6 events per 100 square miles against 1.7 statewide; the county holds 53 of the state's 1,399 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 Flood hub and the county page.