County Hazards

States › Arizona › Yuma County

Yuma County, Arizona

Recorded hazard history: storm events since 1950, federal disaster declarations since 1953, flood insurance claims since 1978, and FEMA's risk index.

FIPS 04027 · 206,990 residents (2021) · 5,514 sq mi · dominant hazard Wind

Hail · 22Tornado · 12Flood · 72Wind · 216Winter · 0
1963-11-01: Hail1964-04-28: Hail1981-08-12: Hail1990-10-01: Hail1991-10-21: Hail1992-03-07: Hail1997-08-27: Hail1997-07-22: Hail1997-07-27: Hail1999-07-18: Hail2005-02-23: Hail2006-08-09: Hail2007-09-02: Hail2010-03-07: Hail2010-08-26: Hail2010-08-26: Hail2010-08-27: Hail2011-09-12: Hail2013-08-22: Hail2014-08-21: Hail2022-10-06: Hail1959-08-17: Tornado1966-09-13: Tornado1972-09-18: Tornado1972-10-04: Tornado1978-02-10: Tornado1978-02-10: Tornado1979-09-28: Tornado1983-07-31: Tornado1987-09-22: Tornado1987-09-22: Tornado2006-08-10: Tornado2018-10-13: Tornado2007-07-26: Flood2012-09-03: Flood2013-08-24: Flood2014-07-05: Flood2014-08-21: Flood2015-09-08: Flood2016-09-07: Flood2018-08-11: Flood2018-08-16: Flood2018-08-16: Flood2018-09-30: Flood2018-09-30: Flood2018-08-16: Flood2019-09-04: Flood2019-09-23: Flood2022-08-13: Flood2022-08-17: Flood2022-10-06: Flood2022-10-06: Flood2022-08-14: Flood2022-08-12: Flood2022-08-24: Flood2022-08-12: Flood2022-08-20: Flood2022-07-30: Flood2023-12-22: Flood2023-04-01: Flood2023-05-01: Flood2023-09-02: Flood2023-09-01: Flood2023-09-02: Flood2023-09-02: Flood2023-09-02: Flood2023-09-01: Flood2023-09-01: Flood2023-09-01: Flood2024-01-22: Flood2024-01-22: Flood2024-01-22: Flood2025-08-25: Flood2025-08-25: Flood2025-08-25: Flood2025-08-25: Flood2025-09-27: Flood2025-09-04: Flood2025-09-04: Flood2025-09-04: Flood2025-09-04: Flood2025-09-04: Flood2025-09-04: Flood2025-09-04: Flood2025-09-27: Flood2025-09-04: Flood2025-09-04: Flood2025-09-04: Flood2025-09-04: Flood2025-09-04: Flood2025-09-04: Flood2025-09-18: Flood2025-09-18: Wind2025-09-04: Wind2025-09-04: Wind2025-09-04: Wind2025-09-04: Wind2025-09-04: Wind2025-09-04: Wind2025-09-04: Wind2025-09-04: Wind2025-09-04: Wind2025-09-04: Wind2025-09-04: Wind2025-09-04: Wind2025-09-04: Wind2025-08-25: Wind2025-08-25: Wind2025-08-25: Wind2024-07-31: Wind2024-07-31: Wind2024-07-23: Wind2023-12-22: Wind2023-09-01: Wind2023-09-01: Wind2023-07-31: Wind2023-03-15: Wind2022-10-15: Wind2022-09-23: Wind2022-09-02: Wind2022-08-24: Wind2022-08-22: Wind2022-08-22: Wind2022-08-22: Wind2022-08-22: Wind2022-08-22: Wind2022-08-18: Wind2022-08-17: Wind2022-08-15: Wind2022-08-14: Wind2022-08-14: Wind2022-08-13: Wind2022-08-12: Wind2022-08-10: Wind2022-08-10: Wind2022-08-10: Wind2022-06-25: Wind2021-08-12: Wind2021-07-30: Wind2021-07-30: Wind2021-07-21: Wind2020-08-16: Wind2019-09-04: Wind2019-09-04: Wind2019-09-04: Wind2019-09-04: Wind2018-09-30: Wind2018-07-21: Wind2018-07-09: Wind2018-07-09: Wind2017-09-08: Wind2017-09-08: Wind2017-09-07: Wind2017-08-03: Wind2017-08-03: Wind2017-08-03: Wind2017-08-03: Wind2017-08-02: Wind2016-08-19: Wind2015-09-08: Wind2015-09-08: Wind2015-09-08: Wind2015-07-19: Wind2014-08-21: Wind2014-08-11: Wind2014-08-11: Wind2014-07-05: Wind2014-07-05: Wind2013-08-22: Wind2013-08-22: Wind2012-09-09: Wind2012-09-09: Wind2012-09-09: Wind2012-08-12: Wind2012-08-05: Wind2012-05-08: Wind2011-09-12: Wind2011-09-05: Wind2011-09-05: Wind2011-08-27: Wind2011-08-27: Wind2011-08-27: Wind2010-08-27: Wind2010-08-26: Wind2010-08-26: Wind2010-08-26: Wind2010-08-26: Wind2010-08-26: Wind2010-08-26: Wind2010-08-26: Wind2010-08-24: Wind2009-09-05: Wind2009-07-24: Wind2009-07-18: Wind2008-09-11: Wind2008-09-11: Wind2008-09-10: Wind2008-08-29: Wind2008-08-07: Wind2007-09-02: Wind2006-09-08: Wind2006-09-06: Wind2006-08-23: Wind2006-08-09: Wind2006-07-15: Wind2005-08-07: Wind2005-08-04: Wind
Yuma County within Arizona. Dots: HailTornadoFloodWind 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. NCEI storm records through 30 Jun 2026; OpenFEMA declarations refreshed 1 Oct 2026; NFIP claims as of 8 Sep 2026.

Between 1950 and 2026, NCEI recorded 401 storm events in Yuma County, Arizona, led by damaging wind.

That is 7.3 events per 100 square miles, below the Arizona figure of 15.7, and 19.4 per 10,000 residents against 24.6 statewide.

37 events fall in the 12 months to 30 Jun 2026. NCEI attributes 0 deaths and 14 injuries to events in the county, with property damage estimated at $22M and crop damage at $55K.

FEMA has designated the county in 6 federal disaster declarations since 1953; the most recent is Covid-19 Pandemic (major disaster, 4 Apr 2020).

National Flood Insurance Program policyholders in the county filed 123 claims since 1978, of which 76 were paid, totalling $1.0M (about $14K per paid claim). FEMA counts 372 residential flood policies in force.

FEMA's National Risk Index rates the county's overall risk as "Relatively Moderate" and its expected annual loss as "Relatively Moderate" ($91M a year across 18 hazards).

2 tropical storm or hurricane tracks in the HURDAT2 record passed within 100 miles of the county's centre at tropical-storm strength or more, 0 of them within 50 miles at hurricane strength.

37events, last 12 monthsto 30 Jun 2026
401events since 19500 deaths, 14 injuries recorded
6disaster declarationslast 4 Apr 2020
123NFIP flood claims$1.0M paid

Compared with Arizona and the United States

MeasureYuma CountyArizonaUS
Recorded events since 195040117,8921,977,440
Events per 100 square miles7.315.756.0
Events per 10,000 residents19.424.659.6
Events in the last 12 months3779362,008
Deaths recorded by NCEI03,14726,435
Property damage (NCEI estimates)$22M$4.3B$575B
NFIP claims per 1,000 residents0.60.78.1
Average paid NFIP claim$14K$18K$43K
Claims per 100 policies in force, last 10 years2.23.716.1

County-recorded events plus zone-recorded events whose forecast zone is named for the county. State and US rows include events recorded only by forecast zone. Rates use 2021 Census population and land area.

Events by decade

Tornado: 1Wind: 4
Hail: 2Tornado: 1Wind: 2
Tornado: 5Wind: 11
Hail: 1Tornado: 3Wind: 21
Hail: 8Flood: 8Wind: 41Other: 1
Hail: 3Tornado: 1Flood: 6Wind: 33Lightning: 2Other: 10
Hail: 7Tornado: 1Flood: 14Wind: 49Heat: 13Fog: 1Other: 9
Hail: 1Flood: 44Wind: 55Heat: 30Fog: 3Other: 10
51950s51960s161970s251980s581990s552000s942010s1432020s
Recorded events in Yuma County by decade and hazard group. HailTornadoFloodWindHeatLightningFogOther NCEI recorded only tornadoes, hail and thunderstorm wind before 1996.

Trend: 265 events in the 20 years to 2025 against 95 in the 20 years before. Reporting practice changed in 1996 and again with automated reports in the 2000s, so decade totals measure the record as much as the weather.

Events by type

Wind216
Flood72
Heat43
Other30
Hail22
Tornado12
Fog4
Lightning2
HazardEventsDeathsShare of state's events
■ Wind216—4.2%detail
■ Flood72—1.8%detail
■ Heat43—1.6%
■ Other30—1.7%
■ Hail22—1.7%detail
■ Tornado12—3.9%detail
■ Fog4—3.6%
■ Lightning2—0.8%

Hazard pages exist for hail, tornado, flood, wind and winter where the county has at least 10 recorded events. "Other" covers heavy rain, debris flow, dust, funnel clouds and similar reports.

Largest recorded events

DateEvent typeGroupMagnitudeProperty damageCrop damageDeathsInjuriesGeography
14 Aug 1996Thunderstorm WindWind60 mph———8County
27 Jul 1989Thunderstorm WindWind61 mph———2County
4 Sep 1991Thunderstorm WindWind72 mph———2County
17 Aug 1959TornadoTornadoF2$250K——1County
21 Oct 2000LightningLightning————1County
6 Sep 1993Thunderstorm WindWind0 mph$5.0M———County
26 Aug 2010Thunderstorm WindWind86 mph$5.0M———County
26 Aug 2010Thunderstorm WindWind81 mph$3.0M———County
2 Sep 2007Thunderstorm WindWind84 mph$1.5M———County
26 Aug 2010Thunderstorm WindWind75 mph$1.0M———County
26 Aug 2010Thunderstorm WindWind69 mph$1.0M———County
26 Aug 2010Thunderstorm WindWind69 mph$500K———County
26 Aug 2010Thunderstorm WindWind69 mph$500K———County
21 Jul 2021Thunderstorm WindWind75 mph$500K———County
16 Aug 2020Thunderstorm WindWind60 mph$475K———County
19 Jul 2015Thunderstorm WindWind70 mph$250K———County
8 Sep 2015Thunderstorm WindWind70 mph$200K———County
29 Aug 2008Thunderstorm WindWind60 mph$150K———County
10 Sep 2008Thunderstorm WindWind75 mph$150K———County
8 May 2012Thunderstorm WindWind69 mph$120K———County

Ranked by deaths, then injuries, then NCEI's damage estimate. Deaths and injuries are NCEI counts (direct plus indirect); no personal details are recorded here.

Federal disaster declarations

DeclaredNumberTypeIncidentTitlePrograms
4 Apr 2020DR-4524Major disasterBiologicalCovid-19 PandemicIndividual assistance, Public assistance
13 Mar 2020EM-3442EmergencyBiologicalCovid-19Public assistance
12 Sep 2005EM-3241EmergencyHurricaneHurricane Katrina EvacuationPublic assistance
19 Jan 1993DR-977Major disasterFloodSevere Storms, Tornadoes & FloodingIndividual assistance, Public assistance
15 Jan 1985DR-730Major disasterSevere StormHeavy Rain & High WindsIndividual assistance, Public assistance
1 Jul 1983DR-686Major disasterFloodFloodingIndividual assistance, Public assistance

Declarations in which FEMA designated this county, from the OpenFEMA Disaster Declarations Summaries (v2). DR: major disaster; EM: emergency; FM: fire management assistance. Programs show whether individual or public assistance was made available.

Flood insurance claims

197820022026
NFIP claims by year of loss in Yuma County, 1978 to 2026 (hover for the amount paid).
Claims since 1978123
Paid claims76
Total paid$1.0M
Average paid claim$14K
Repetitive-loss properties10 severe
Residential policies in force3720.5% of 79,151 structures
Year of lossClaimsPaid claimsAmount paidAverage paid
202542$91,299$45,650
202321$122,206$122,206
202011$8,275$8,275
201710$0—
201210$0—
201110$0—
201030$0—
200740$0—
200531$3,537$3,537
200276$74,493$12,416
200110$0—
199811$1,084$1,084
199710$0—
199411$5,528$5,528
19935444$645,687$14,675
199210$0—
19892111$41,530$3,775
198410$0—
198362$4,575$2,288
198021$2,826$2,826
197975$47,783$9,557

OpenFEMA NFIP claims (v3, as of 8 Sep 2026), aggregated by year of loss; amounts are building, contents and increased-cost-of-compliance payments as recorded. Repetitive-loss counts from the NFIP Multiple Loss Properties file (2 Aug 2026); policies in force from the NFIP Residential Penetration Rates file (3 Aug 2026).

National Risk Index

Overall riskRelatively Moderatescore 92.6 of 100
Expected annual loss$91MRelatively Moderate
Social vulnerabilityRelatively High
Community resilienceVery Low
Hazard (NRI)Risk ratingExpected annual loss
EarthquakeRelatively High$52,006,465
Inland floodingRelatively Moderate$31,603,156
Heat waveRelatively High$6,434,337
Strong windRelatively Moderate$561,962
DroughtRelatively Moderate$513,249
LightningRelatively Low$136,441
TornadoVery Low$90,637
WildfireVery Low$58,462
HailVery Low$42,931
HurricaneVery Low$5,574
LandslideVery Low$762
Volcanic activityVery Low$23
Winter weatherVery Low$0

FEMA National Risk Index, December 2025 release. Ratings are FEMA's relative comparison of counties; expected annual loss is FEMA's modelled estimate of average yearly building, population and agriculture loss. See how to read the NRI.

Hurricane and tropical storm passes

Tracks within 100 miles2
Tracks within 50 miles0
Hurricane strength within 50 miles0
StormYearClosest approachMax wind while within 100 mi
Nora199794 mi63 mph
Katrina196773 mi52 mph

HURDAT2 best-track positions at tropical-storm strength (34 kt) or more, measured from the county's Census centre point; through the 2025 season. Distance from a track is not the same as the extent of the storm's wind, rain or surge.

ZIP codes with flood claims

ZIP codes whose NFIP claims carry this county's code, with the number of claims. Five or more claims are needed for a ZIP page to be indexed.

Questions and answers

How often does it hail in Yuma County, AZ?

NCEI records 22 hail events in Yuma County since 1950, in 17 different years; that is about 0.3 recorded events a year. 0 reports were golf-ball size (1.75 in) or larger.

Has Yuma County had a tornado?

Yes. NCEI records 12 tornadoes in Yuma County since 1950, 1 of them rated (E)F2 or stronger. Tornado deaths recorded: 0.

When was the last federal disaster declaration for Yuma County?

4 Apr 2020: Covid-19 Pandemic, a major disaster declaration for biological. The county appears in 6 declarations since 1953.

How many flood insurance claims have been filed in Yuma County, and how much was paid?

123 NFIP claims since 1978, 76 of them paid, for $1.0M in total. FEMA publishes these figures redacted and aggregated; individual properties are not identified.

Is Yuma County in the National Risk Index's high-risk band?

FEMA's National Risk Index (December 2025) rates the county "Relatively Moderate" for overall risk, "Relatively Moderate" for expected annual loss, "Relatively High" for social vulnerability and "Very Low" for community resilience. These ratings are FEMA's relative comparison across all US counties.

How does Yuma County compare with the rest of Arizona?

7.3 recorded events per 100 square miles against 15.7 statewide, and 0.6 NFIP claims per 1,000 residents against 0.7. The comparison table on this page shows each measure beside the state and national figures.

Provenance

Storm events: NOAA NCEI Storm Events Database, yearly details files through 30 Jun 2026 (public domain). Declarations: OpenFEMA DisasterDeclarationsSummaries v2, refreshed 1 Oct 2026. Flood claims: OpenFEMA NfipClaims v3 as of 8 Sep 2026; NfipMultipleLossProperties v1 (2 Aug 2026); NfipResidentialPenetrationRates v1 (3 Aug 2026). Risk index: FEMA National Risk Index, December 2025. Hurricane tracks: NHC HURDAT2 through 2025. Population and area: US Census Bureau, 2021 vintage. Built 1 Oct 2026; see the methodology and corrections pages. Hazard hubs: Hail · Tornado · Flood · Wind · Winter.