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The data below is historical (NOAA Storm Events / FEMA), not a live alert. For current warnings and evacuation orders, check the National Weather Service, Ready.gov, or FEMA.gov.

State profile · FEMA + NOAA + National Risk Index

Arizona Natural Disasters

Arizona carries a substantial federal disaster record. 120 FEMA disaster declarations are on record, led by fire, with $366.3M in combined property and crop damage. The count also reflects declaration policy and program use; it is not a direct measure of physical hazard frequency. NOAA storm event data shows 9,541 recorded weather events resulting in 2,810 fatalities, figures the state uses to prioritize disaster-preparedness planning.

120
FEMA declarations
9,541
NOAA storm events
2,810
Storm fatalities
$366.3M
Property + crop damage

The Arizona risk picture

3 of the 15 counties FEMA scores, 20%, carry a FEMA "high-risk" National Risk Index rating, with riverine flooding the single largest driver of expected annual loss statewide. Arizona has 37 Major Disaster (DR) declarations; FEMA authorizes Individual Assistance, Public Assistance, or both separately for each declaration. NOAA-tracked storms have caused 344 injuries statewide.

20%
of counties rated high-risk by FEMA National Risk Index
120
FEMA disaster declarations on record
$366.3M
in tracked property + crop damage
5,252
NFIP flood insurance claims filed statewide

FEMA's National Risk Index and NOAA's Storm Events Database measure different things: modeled long-run risk vs. observed severe-weather events. Storm Events is a reported dataset, so its counts track what was observed and logged, not every event that occurred, and reporting is denser where more people live. See the methodology for how they relate.

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FEMA declarations

120

High volume

Major Disaster share

31%

Mixed major share

NOAA storm events

9,541

Observed severe-weather records

How does Arizona compare?

Arizona vs. every U.S. state

FEMA disaster declarations, all-time

120 Top 14% higher than 86% of 59 states and territories

This state 0 400 all U.S. states and territories FEMA tracks, bucketed by value

Each bar is a band; taller bars hold more states and territories. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.

Source FEMA Disaster Declarations Summaries v2 · 2026-08-25

Arizona county risk-score spread

FEMA National Risk Index composite scores, 0–100

84.5 27th percentile higher than 27% of 15 county composite scores

State average 0 100 Arizona counties, bucketed by FEMA score, bucketed by value

Each bar is a band; taller bars hold more county composite scores. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.

Source FEMA National Risk Index (NRI), county composite scores · 2026-08-25

The declaration chart counts past federal actions. The county score chart summarizes FEMA's modeled National Risk Index composite; it is not a forecast, and a state average does not describe every county.

Do more storms mean more federal disasters?

Arizona sits at the 85th percentile of FEMA declaration volume and the 38th percentile of NOAA storm-event volume among 55 states and territories, those two ranks are not interchangeable.

FEMA declaration rank vs NOAA storm-event rank

Each point is a state or territory plotted by within-sample rank percentile (0–100) on FEMA OpenFEMA declarations (x) and NOAA Storm Events (y). Crosshairs mark the mid-rank (50th). Illinois is the clearest threshold-gap example in this release. Source: FEMA OpenFEMA Disaster Declarations Summaries v2 + NOAA Storm Events Database. 2×2 strategic matrix plotting 30 entities by FEMA declarations (percentile) (X) and NOAA storm events (percentile) (Y), with a crosshair dividing the plot into four quadrants. Busy on both ledgersMany storms · fewer declarationsDeclaration-heavy · fewer stormsQuiet on both 406080100120 020406080100120 FEMA declarations (percentile) NOAA storm events (percentile) Signature insight
Each point is a state or territory plotted by within-sample rank percentile (0–100) on FEMA OpenFEMA declarations (x) and NOAA Storm Events (y). Crosshairs mark the mid-rank (50th). Illinois is the clearest threshold-gap example in this release. Source: FEMA OpenFEMA Disaster Declarations Summaries v2 + NOAA Storm Events Database.
Read the chart, every state as text

Percentiles are within this release's state/territory sample. Raw counts are the underlying FEMA and NOAA totals.

StateFEMA declsFEMA %ileNOAA stormsNOAA %ile
California3969823,69493
Texas3899653,30998
Oklahoma2589523,89695
Washington215934,40822
Florida1889112,83855
Oregon169893,69520
New Mexico1268710,97445
Arizona120859,54138
New York1188421,65382
Montana1128213,57656
Colorado1117818,34073
Louisiana1117811,20447
Nevada110764,53424
Alabama1027514,58364
Kentucky987119,94778
Mississippi987114,10062
Tennessee976916,64569
South Dakota966722,75987
Alaska94642,68315
Kansas946425,11596
Arkansas876013,63758
Nebraska876020,13680
Missouri865822,95289
North Carolina855616,36767
West Virginia845512,02649
Georgia815116,67671
Minnesota815119,10975
Iowa784921,88384
Virginia774723,58491
North Dakota754510,81844
Hawaii72446,20031
Maine71424,78127
Illinois684022,08885
Pennsylvania643819,42776
New Hampshire63362,54711
Vermont62353,44918
Idaho60315,14229
Ohio603116,18465
Massachusetts59256,78133
New Jersey59258,21835
Utah59254,57825
Wisconsin562413,80760
Indiana542212,68753
Puerto Rico51182,94416
South Carolina511810,52042
Michigan46169,05236
Wyoming451512,49451
Connecticut43132,62213
Maryland381110,29040
U.S. Virgin Islands339880
Rhode Island3179247
Delaware2651,4759
Guam2542582
District of Columbia2424525
American Samoa1702924

What shapes Arizona's record?

FEMA declaration types in Arizona

Wider bars = more declarations of that incident type

declarations

What this shows Fire leads Arizona's FEMA declaration mix with 82 records among the types shown.

Source FEMA OpenFEMA Disaster Declarations Summaries v2 As of 2026-08-25

NOAA storm events by year in Arizona

Reported severe-weather events, 2015-2025 catalog window

05001,0001,500 20152016201720182019202020212022202320242025 896

Source: NOAA Storm Events Database As of 2026-08-25

Peak year in this series: 2022 (1,419 events). Counts are reported events, not a complete census.

55 /100

Historical Activity Index

High historical activity

Arizona · PlainHazard-derived composite from federal records

This 0–100 index is an explicit PlainHazard composite mixing OpenFEMA declaration totals (1953–present) with NOAA Storm Events (2015–2025), different windows and event definitions, disclosed weights on the methodology page . It is not FEMA's National Risk Index, not a forecast, and not a safety, insurance, or preparedness rating. Open the calculator · Methodology

FEMA Declarations (1953–present) High
20/30

120 OpenFEMA declarations, full ingest window (1.4x state average)

NOAA Storm Events (2015–2025) Moderate
11/25

9541 NOAA storm events in the 2015–2025 extract (0.9x median state)

NOAA Damage (2015–2025) Low
6/25

Recorded NOAA property+crop damage in the 2015–2025 extract (0.6x median state)

Hazard Diversity Very High
18/20

7 different disaster types declared in Arizona

What does Arizona's hazard record show?

FEMA disaster declarations

Arizona (AZ) has a high level of federal declaration activity, with 120 FEMA declaration records, including 37 Major Disaster declarations (DR). A DR may authorize Individual Assistance, Public Assistance, or both; those program approvals are not implied by the DR count. The dominant declaration type is Fire, followed by Flood (17), Severe Storm (15), Biological (3). Declaration counts at the state level reflect the cumulative federal footprint: large multi-county events count once per state, but repeat hazard patterns across decades are visible in the breakdown below.

Flood exposure & where to dig deeper

Flood exposure is quantified separately through the National Flood Insurance Program. Policyholders across 15Arizona counties have filed 5,252 NFIP claims totaling $61.9M, or an average of $11.8K per claim. NFIP data captures only insured flood losses, so uninsured flood damage and storm-surge losses outside mapped high-risk zones remain invisible in this figure. The highest-Expected-Annual-Loss hazard across the state is Riverine Flooding, estimated at $2.0B annually. Drill into individual counties for localized risk, read FEMA's hazard-specific briefings, and review insurance and flood-zone designations, state-level averages can mask sharp county-to-county differences in exposure and resilience.

NOAA storm events & FEMA National Risk Index

NOAA's Storm Events Database adds the near-term severe-weather lens. Between 2015 and 2025, Arizona recorded 9,541 individual storm events, causing 2,810 fatalities and 344 injuries, with combined property and crop damage estimated at $366.3M. The most frequent event types in the state are Flash Flood (2,094 events), Excessive Heat (1,812 events), Thunderstorm Wind (1,680 events). Across the 15counties FEMA scores here, its National Risk Index flags 3 as high-risk, with an average county Risk Index score (FEMA's own formula, distinct from our Historical Activity tool below) of 84.5/100.

What this count is, and is not. Storm Events is a reported database: NOAA compiles it from National Weather Service offices, trained spotters, law enforcement, and the public. It is a record of what was observed and logged, not a complete census of severe weather. Densely populated areas report more events than sparsely populated ones with similar meteorological exposure, and detection has improved over time, so an event count is not a like-for-like measure of hazard between places or across decades. Damage figures are field estimates, not audited losses. See methodology.

Disaster Types in Arizona

Share of this state's FEMA declarations; the bar chart above is the same mix as counts.

Fire

68.3%

82 declarations

Flood

14.2%

17 declarations

Severe Storm

12.5%

15 declarations

Biological

2.5%

3 declarations

Drought

0.8%

1 declarations

Hurricane

0.8%

1 declarations

Freezing

0.8%

1 declarations

Storm Events by Type

NOAA storm event data for Arizona (2015-2025).

Event Type Events Fatalities Injuries Property Damage
Flash Flood 2,094 45 18 $149.9M
Excessive Heat 1,812 1,497 120 $0
Thunderstorm Wind 1,680 3 19 $75.9M
Heat 727 1,206 39 $0
High Wind 446 0 0 $734.0K
Dust Storm 443 6 28 $1.5M
Heavy Snow 404 0 43 $55.0K
Hail 401 0 6 $5.5M
Drought 396 0 0 $0
Heavy Rain 248 2 13 $1.9M
Wildfire 189 1 18 $105.4M
Flood 184 10 0 $14.0M
Lightning 81 4 30 $3.7M
Winter Storm 76 5 1 $202.0K
Funnel Cloud 65 0 0 $0
Tornado 63 0 5 $965.0K
Dense Fog 58 2 2 $50.0K
Strong Wind 54 3 1 $327.8K
Cold/Wind Chill 33 21 0 $5.0K
Winter Weather 26 3 0 $115.0K

Storm Events by Year

Year Events Fatalities Injuries Property Damage
2025 896 165 50 $37.6M
2024 688 266 10 $39.7M
2023 1,012 771 21 $19.6M
2022 1,419 439 4 $44.5M
2021 1,301 348 26 $105.0M
2020 816 345 12 $3.9M
2019 824 185 21 $15.1M
2018 1,125 255 59 $67.5M
2017 498 13 13 $11.7M
2016 444 13 58 $6.3M
2015 518 10 70 $10.7M

FEMA Disaster Declarations

How the 120 FEMA declarations break into federal action codes (DR / EM / FM). Same DISTINCT grain as the table below.

Download all 120 declarations as CSV . Source data is public domain; our derived presentation is CC0.

120 unique disaster declarations in Arizona.

DR# Title Type Incident Date
4911 SEVERE STORMS AND FLOODING DR Severe Storm 2026-05-29
5585 CODY FIRE FM Fire 2025-05-22
5584 GREER FIRE FM Fire 2025-05-14
4840 FLOODING DR Flood 2024-10-25
4833 WATCH FIRE DR Fire 2024-10-04
5508 WATCH FIRE FM Fire 2024-07-13
5505 SHAKE FIRE FM Fire 2024-07-09
5501 BOULDER VIEW FIRE FM Fire 2024-06-28
5496 ROSE FIRE FM Fire 2024-06-12
5493 SIMMONS FIRE FM Fire 2024-05-29
5466 DIAMOND FIRE FM Fire 2023-06-28
4703 SEVERE WINTER STORMS AND FLOODING DR Severe Storm 2023-04-11
4681 FLOODING DR Flood 2022-12-30
4668 SEVERE STORMS DR Severe Storm 2022-09-02
5441 PIPELINE FIRE FM Fire 2022-06-12
5435 CROOKS FIRE FM Fire 2022-04-19
5434 TUNNEL 2 FIRE FM Fire 2022-04-19
4620 SEVERE STORMS AND FLOODING DR Flood 2021-09-13
5389 TELEGRAPH FIRE FM Fire 2021-06-06
5387 SPUR FIRE FM Fire 2021-05-27
5385 MARGO FIRE FM Fire 2021-04-08
4582 COVID-19 PANDEMIC DR Biological 2021-02-02
5340 GRIFFIN FIRE FM Fire 2020-08-26
5315 AVONDALE FIRE FM Fire 2020-06-27
5314 AQUILA FIRE FM Fire 2020-06-23
5313 BUSH FIRE FM Fire 2020-06-20
5312 BIG HORN FIRE FM Fire 2020-06-11
5311 OCOTILLO FIRE FM Fire 2020-05-30
5310 EAST DESERT FIRE FM Fire 2020-05-18
4524 COVID-19 PANDEMIC DR Biological 2020-04-04
3442 COVID-19 EM Biological 2020-03-13
5284 MUSEUM FIRE FM Fire 2019-07-22
4436 SNOWSTORM AND FLOODING DR Severe Storm 2019-05-21
4409 SEVERE STORMS AND FLOODING DR Severe Storm 2018-11-30
4389 SEVERE STORMS, FLOODING, AND LANDSLIDES DR Flood 2018-08-31
5238 89 EAST FIRE FM Fire 2018-05-11
5236 TINDER FIRE FM Fire 2018-04-29
5188 ROACH FIRE FM Fire 2017-07-08
5186 GOODWIN FIRE FM Fire 2017-06-25
5183 LIZARD FIRE FM Fire 2017-06-11
5125 TENDERFOOT FIRE FM Fire 2016-06-08
5095 WILLOW FIRE FM Fire 2015-08-09
5086 KEARNY RIVER FIRE FM Fire 2015-06-17
5083 SLIDE FIRE FM Fire 2014-11-06
4203 SEVERE STORMS AND FLOODING DR Flood 2014-11-05
5033 DEAN PEAK FIRE FM Fire 2013-07-02
5032 YARNELL HILL FIRE FM Fire 2013-06-30
5029 DOCE FIRE FM Fire 2013-06-19
4104 SEVERE FREEZE DR Freezing 2013-03-05
2919 MONUMENT FIRE FM Fire 2011-06-12

Showing 50 of 120 declarations.

FEMA National Risk Index

Composite natural hazard risk scores for Arizona counties based on FEMA's National Risk Index.

Avg County Risk Score

84.5/100

High Risk Counties

3

of 15 counties

Top Hazard by EAL

Riverine Flooding

$2.0B annual loss est.

Top 5 Hazards by Expected Annual Loss

#1

Riverine Flooding

$2.0B EAL

#2

Heat Wave

$1.2B EAL

#3

Wildfire

$228.3M EAL

#4

Earthquake

$103.4M EAL

#5

Hail

$29.1M EAL

Source: FEMA National Risk Index (NRI) EAL = Expected Annual Loss. Data: hazards.fema.gov/nri

NFIP Flood Insurance Claims

National Flood Insurance Program claims across Arizona from FEMA NFIP data.

Total Claims

5,252

Total Paid

$61.9M

Avg Per Claim

$11.8K

Counties With Claims

15

Source: FEMA National Flood Insurance Program (NFIP) OpenFEMA Claims Data

Counties in Arizona

15 counties with FEMA disaster data. Declaration counts measure past federal action; NRI rating is FEMA's modeled composite, so a high count is not a high rating.

#CountyDisastersNRI ratingMajor
1Maricopa County26Very High13
2Yavapai County26Relatively Moderate10
3Coconino County24Relatively Moderate10
4Gila County23Relatively Moderate13
5Pinal County23Relatively Moderate10
6Navajo County21Relatively Moderate12
7Apache County16Relatively Low9
8Mohave County15Relatively High9
9Pima County15Relatively High11
10Cochise County14Relatively Moderate6
11Greenlee County13Very Low10
12Graham County13Relatively Low10
13Santa Cruz County8Relatively Moderate5
14La Paz County7Relatively Moderate5
15Yuma County6Relatively Moderate4

Highest-risk counties by FEMA National Risk Index

Declaration counts above measure past federal action; FEMA's NRI is a composite of Expected Annual Loss, social vulnerability, and community resilience. By that separate measure the highest-risk counties in Arizona are Maricopa (Very High), Pima (Relatively High), Mohave (Relatively High), Coconino (Relatively Moderate), Pinal (Relatively Moderate). Compare any county's recorded history with the Historical Activity tool.

All 15 counties in Arizona are listed above.

Compare beyond this profile

Nationwide states with similar NRI score & FEMA declaration volume

Two PlainHazard-derived comparison paths for Arizona: nearest states by average county National Risk Index composite and nearest FEMA declaration count (floor ≥5 records). Record similarity only, not a forecast of the next hazard.

Disaster Preparedness Guides

Learn more about natural disaster risk, preparedness, and data interpretation.

Frequently Asked Questions

What natural disasters affect Arizona?
Arizona is affected by fire, flood, severe storm, biological. Topping the list is Fire, based on 120 FEMA disaster declarations on record.
How many FEMA disaster declarations has Arizona had?
Arizona has received 120 FEMA disaster declarations, including 37 major disaster declarations. These declarations span multiple disaster types including Fire (82), Flood (17), Severe Storm (15).
What severe weather events are most common in Arizona?
The most common severe weather events in Arizona include flash flood (2,094 events), excessive heat (1,812 events), thunderstorm wind (1,680 events). Over that 2015-2025 NOAA record, these events resulted in 2,810 fatalities and $366.3M in property and crop damage.
How active is Arizona's federal disaster declaration record?
Arizona has a high level of historical federal declaration activity, based on 120 FEMA declaration records. This band is not a future-risk forecast. Separately, NOAA storm events from 2015-2025 record 2,810 fatalities and 344 injuries. Combined NOAA-listed property and crop losses total $366.3M.
How many flood insurance claims has Arizona had?
Arizona has 5,252 National Flood Insurance Program (NFIP) claims with $61.9M total paid out. Claims average $11.8K, with 15 counties reporting flood insurance claims.
Which counties in Arizona have the most disaster declarations?
Among 15 counties in Arizona, those with the most FEMA declaration records include Maricopa (26 declarations), Yavapai (26 declarations), Coconino (24 declarations). County-level records show where federal declarations have concentrated across the state.

Source: FEMA OpenFEMA Disaster Declarations, NOAA Storm Events Database (2015-2025) For informational purposes only

What this means for Arizona

Maricopa alone accounts for 22% of Arizona's FEMA disaster declarations, out of 15 counties tracked statewide.

  • The declaration record is uneven within the state: Maricopa and Yavapai carry the most FEMA declarations. Browse counties
  • See how Arizona ranks against other states for disaster frequency and damage. State rankings
  • Learn what FEMA declarations, NRI risk scores, and damage figures do and don't tell you. Disaster-data guide

Historical declaration counts and damage totals describe past federal response, not a forecast. For current threats, follow the National Weather Service and local officials; in an emergency call 911.

Verify with FEMA → · Verify with FEMA NRI → · Verify with NOAA →

Every figure on PlainHazard is rendered directly from FEMA federal disaster data, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or national statistics report, the data & editorial changelog, or report a data error.