Asotin County, Washington

County storm and disaster record · FIPS 53003 · population 22,285 · 636 sq mi

NOAA's Storm Events Database holds 208 records for Asotin County, Washington from 1950 through June 30, 2026, on 166 days; the most frequent are winter storm records (104 records). 160 of them are forecast-zone records, which the National Weather Service files once per zone: a county covered by several zones receives each one, so a single storm can add several records on the same day. The most damaging was the July 15, 2024 wildfire ($32.9 million in 2025 dollars). FEMA has issued 13 declarations naming the county since 1964, 11 of them for natural hazards; the latest for a natural hazard was “Severe Storms, Straight-Line Winds, Flooding, Landslides, and Mudslides” on April 7, 2026.

The record, 1950 to 2026

Storm records filed for the county each year (2026 to June 30, 2026). Before 1996 NOAA recorded only tornadoes (from 1950), thunderstorm wind and hail (from 1955).

  • recorded, no damage figure
  • under $100,000
  • $100,000 or more
  • $1 million or more
  • $10 million or more, or a death
  • $100 million or more, or 10 deaths
  • a year's colour: its recorded damage or deaths
  • a year with a death
  • 1955: wind and hail recorded from 1955
  • 1996: all 48 event types from 1996
Storm records
208on 166 days, 1950 to June 30, 2026
Deaths recorded
00 injuries
Damage, 2025 dollars
$70Mas filed (scale steps before 1993)
FEMA declarations
13latest 2026

Source: NOAA NCEI Storm Events Database, records through June 30, 2026 (file revision 20260918); damage converted to 2025 dollars with the BLS CPI-U. Search the record at NCEI. BLS consumer price index.

What hazards hit Asotin County most?

The most frequent records are winter storm records: 104 since 1998. 53% of its winter storm records since 1998 fell in January and February. The rank column places the county among Washington's counties by days with a record per 1,000 square miles of land over each hazard's complete period.

Asotin County: records by hazard, 1950 to June 30, 2026
HazardRecordsDaysFirst, lastKilledInjuredDamageRank in state
Winter storms 104 77 1998-2025 0 0 – 9 of 39
High wind and dust storms 41 37 1998-2026 0 0 $1.1M 16 of 39
Hail 21 16 1961-2022 0 0 $2K 1 of 39
Severe thunderstorm wind 15 14 1997-2024 0 0 $71K 2 of 39
Floods 12 12 1997-2023 0 0 $2.1M 8 of 39
Wildfires 12 12 2007-2024 0 0 $67M 10 of 39
Lightning 2 2 2016-2024 0 0 $13K 7 of 39
Heavy rain 1 1 1999-1999 0 0 – 29 of 39

Source: NOAA NCEI Storm Events Database (county and forecast-zone records attributed to the county; a zone record shows its own totals on each county it covers). Days: dates with at least one record of the hazard in the county. Ranks: days with a record per 1,000 square miles of land (Census Bureau 2024 Gazetteer), since 1950 for tornadoes, 1955 for hail and thunderstorm wind, 1996 for the rest.

When was the last damaging storm in Asotin County?

The most recent record with damage, injuries or deaths is the December 17, 2025 high wind ($10,000 in damage in 2025 dollars).

The 12 most recent records kept for Asotin County
DateRecordCharacterKilledInjuredDamage
2026-03-08 High WindAsotin County and Garfield County · forecast zone Lower Garfield & Asotin 35 kt wind 0 0 –
2026-03-07 High WindAsotin County and Garfield County · forecast zone Northeast Blue Mountains 50 kt wind 0 0 –
2025-12-17 High WindAsotin County and Garfield County · forecast zone Lower Garfield & Asotin 50 kt wind 0 0 $10K
2025-12-10 High WindAsotin County and Garfield County · forecast zone Lower Garfield & Asotin 50 kt wind 0 0 –
2025-12-10 High WindAsotin County and Garfield County · forecast zone Northeast Blue Mountains 52 kt wind 0 0 –
2025-12-09 High WindAsotin County and Garfield County · forecast zone Lower Garfield & Asotin 54 kt wind 0 0 –
2025-11-07 High WindAsotin County and Garfield County · forecast zone Northeast Blue Mountains 50 kt wind 0 0 –
2025-02-04 Heavy SnowAsotin County and Garfield County · forecast zone Northeast Blue Mountains 0 0 –
2024-08-01 WildfireAsotin County and Garfield County · forecast zone Lower Garfield & Asotin 0 0 $33M
2024-07-29 WildfireAsotin County and Garfield County · forecast zone Lower Garfield & Asotin 0 0 $917K
2024-07-15 WildfireAsotin County and Garfield County · forecast zone Northeast Blue Mountains 0 0 $33M
2023-06-24 WildfireAsotin County and Garfield County · forecast zone Lower Garfield & Asotin 0 0 $387K

Source: NOAA NCEI Storm Events Database; every record of 2025-2026 is listed, earlier ones when they caused deaths, injuries or $250,000 of damage (2025 dollars), and every tornado.

The deadliest and costliest records

The costliest records in Asotin County since 1993, damage in 2025 dollars
DateRecordCharacterKilledInjuredDamage
2024-07-15 WildfireAsotin County and Garfield County · forecast zone Northeast Blue Mountains 0 0 $33M
2024-08-01 WildfireAsotin County and Garfield County · forecast zone Lower Garfield & Asotin 0 0 $33M
2017-04-13 Flash FloodMountain View, Asotin County 0 0 $1.8M
2024-07-29 WildfireAsotin County and Garfield County · forecast zone Lower Garfield & Asotin 0 0 $917K
1999-02-02 High WindAsotin County and Garfield County · forecast zone N Garfield & Ne Asotin 0 0 $886K
2023-06-24 WildfireAsotin County and Garfield County · forecast zone Lower Garfield & Asotin 0 0 $387K
2025-12-17 High WindAsotin County and Garfield County · forecast zone Lower Garfield & Asotin 50 kt wind 0 0 $10K
1997-05-31 Thunderstorm WindClarkston, Asotin County 0 0 $2K

Source: NOAA NCEI Storm Events Database: deaths and injuries direct and indirect; damage is property plus crops as estimated by the National Weather Service, converted to 2025 dollars.

Is it getting more frequent?

Records per decade for Asotin County's most frequent hazards. Counts rose everywhere after 1996, when NOAA began recording every event type, so compare decades within a hazard's complete period only (the shaded cells come before it).

Asotin County: records per decade (the 2020s to June 30, 2026)
Hazard1950s1960s1970s1980s1990s2000s2010s2020-26
Winter storms––––6384020
High wind and dust storms––––315815
Hail010007103
Severe thunderstorm wind00001752
Floods––––4143
Wildfires––––0156

Source: NOAA NCEI Storm Events Database, records per calendar decade; zone records from the CZ_TYPE field (Z).

What time of year?

53% of its winter storm records since 1998 fell in January and February. The two busiest months are in violet.

The values, month by month

Jan 29 · Feb 34 · Mar 17 · Apr 13 · May 8 · Jun 21 · Jul 9 · Aug 21 · Sep 6 · Oct 6 · Nov 14 · Dec 30 (records).

Source: NOAA NCEI Storm Events Database, records by the month they began.

Federal disaster declarations for Asotin County

FEMA's register lists 13 declarations that include Asotin County: 9 major disasters, 4 emergencies and 0 fire management assistance declarations. Most were for flood (5) and biological (2).

Declarations including Asotin County, newest first
DeclaredNumberTypeTitle
2026-04-07DR-4906FloodSevere Storms, Straight-Line Winds, Flooding, Landslides, and Mudslides
2020-03-22DR-4481BiologicalCovid-19 Pandemic
2020-03-13EM-3427BiologicalCovid-19
2015-08-21EM-3372FireWildfires
2009-03-02DR-1825Severe StormSevere Winter Storm and Record and Near Record Snow
2005-09-07EM-3227Coastal StormHurricane Katrina Evacuation
1997-01-17DR-1159Severe StormSevere Winter Storms, Land & Muds Slides,Flooding
1996-02-09DR-1100FloodHigh Winds, Severe Storms and Flooding
1980-05-21DR-623Volcanic EruptionVolcanic Eruption, Mt. St. Helens
1977-03-31EM-3037DroughtDrought
1974-01-25DR-414FloodSevere Storms, Snowmelt & Flooding
1972-02-01DR-322FloodSevere Storms & Flooding
1964-12-29DR-185FloodHeavy Rains & Flooding

Source: FEMA OpenFEMA Disaster Declarations Summaries (v2), declarations through October 2, 2026; one declaration is counted once however many areas it names. OpenFEMA dataset page.

How many floods has Asotin County had?

NOAA's Storm Events Database holds 12 flood or flash flood records for Asotin County from 1997 to 2023, on 12 days, with 0 deaths. By flood insurance claims since 1978 (OpenFEMA, as of September 8, 2026), Asotin County ranks 2636th of 2,942 U.S. counties.

The National Flood Insurance Program has paid $54,000 on 4 claims filed in Asotin County; the most in one year was 1 in 1996. Claims count insured losses only: uninsured flood damage is not in this file.

The values, year by year

1996: 1 · 1997: 1 · 2010: 1 · 2017: 1; the other years: 0.

Source: FEMA OpenFEMA NFIP Redacted Claims, as of September 8, 2026; claims by year of loss, payments in the dollars of the year paid. OpenFEMA dataset page.

FEMA's modeled risk for Asotin County

FEMA's National Risk Index rates Asotin County Very Low overall, with an expected annual loss of $5.4 million. These are FEMA's model estimates of future loss from 18 hazards, not a count of what happened; they can differ from the record above.

National Risk Index ratings for Asotin County (December 2025 release), by FEMA's rating, then score
HazardRisk ratingExpected annual lossModeled frequency
WildfireRelatively Moderate$982Konce in about 132 years (modeled)
LandslideRelatively Low$6Konce in about 2 years (modeled)
AvalancheRelatively Low$4Konce in about 100 years (modeled)
Heat WaveRelatively Low$356K3.8 modeled event-days a year
Riverine FloodingRelatively Low$3.7Monce in about 3 years (modeled)
EarthquakeVery Low$77Konce in about 848 years (modeled)
Winter WeatherVery Low$14K13 a year (modeled)
Cold WaveVery Low$149Konce in about 11 years (modeled)

Source: FEMA National Risk Index, county table, December 2025 release. FEMA's National Risk Index map.

Counties that share a border with Asotin County

  1. Wallowa County, OR 343
  2. Whitman County 343
  3. Nez Perce County, ID 310
  4. Asotin County 208
  5. Garfield County 185

Source: U.S. Census Bureau county adjacency file; NOAA NCEI Storm Events Database, records since 1950. The Census Bureau's adjacency file.

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