States › Oklahoma › Washington County
Washington County, Oklahoma
Recorded hazard history: storm events since 1950, federal disaster declarations since 1953, flood insurance claims since 1978, and FEMA's risk index.
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.
The NCEI record lists 840 events for Washington County, Oklahoma, between 1950 and 2026; hail account for the largest share.
That is 202.2 events per 100 square miles, above the Oklahoma figure of 120.9, and 159.2 per 10,000 residents against 208.0 statewide.
19 events fall in the 12 months to 30 Jun 2026. NCEI attributes 2 deaths and 74 injuries to events in the county, with property damage estimated at $73M.
FEMA has designated the county in 33 federal disaster declarations since 1953; the most recent is Rattlesnake Fire (fire management assistance, 19 Feb 2026).
National Flood Insurance Program policyholders in the county filed 372 claims since 1978, of which 326 were paid, totalling $8.6M (about $26K per paid claim). FEMA counts 181 residential flood policies in force.
FEMA's National Risk Index rates the county's overall risk as "Relatively Low" and its expected annual loss as "Relatively Low" ($32M a year across 18 hazards).
1 tropical storm or hurricane track 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.
Compared with Oklahoma and the United States
| Measure | Washington County | Oklahoma | US |
|---|---|---|---|
| Recorded events since 1950 | 840 | 82,919 | 1,977,440 |
| Events per 100 square miles | 202.2 | 120.9 | 56.0 |
| Events per 10,000 residents | 159.2 | 208.0 | 59.6 |
| Events in the last 12 months | 19 | 2,570 | 62,008 |
| Deaths recorded by NCEI | 2 | 705 | 26,435 |
| Property damage (NCEI estimates) | $73M | $9.6B | $575B |
| NFIP claims per 1,000 residents | 7.0 | 3.3 | 8.1 |
| Average paid NFIP claim | $26K | $24K | $43K |
| Claims per 100 policies in force, last 10 years | 21.0 | 17.0 | 16.1 |
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
Trend: 457 events in the 20 years to 2025 against 324 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
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
| Date | Event type | Group | Magnitude | Property damage | Crop damage | Deaths | Injuries | Geography |
|---|---|---|---|---|---|---|---|---|
| 26 Apr 1991 | Tornado | Tornado | F2 | $250K | — | 1 | 10 | County |
| 1 Aug 2011 | Excessive Heat | Heat | — | — | — | 1 | — | Forecast zone |
| 15 Mar 1982 | Tornado | Tornado | F2 | $25M | — | — | 57 | County |
| 19 Apr 2003 | Tornado | Tornado | F2 | $1.7M | — | — | 3 | County |
| 26 May 1973 | Tornado | Tornado | F3 | $3K | — | — | 3 | County |
| 8 Dec 2007 | Ice Storm | Winter | — | $20M | — | — | — | Forecast zone |
| 6 May 2024 | Tornado | Tornado | EF2 | $15M | — | — | — | County |
| 28 Feb 2012 | Thunderstorm Wind | Wind | 70 mph | $5K | — | — | 1 | County |
| 8 May 2000 | Hail | Hail | 4.50 in | $2.0M | — | — | — | County |
| 1 Sep 2014 | Thunderstorm Wind | Wind | 81 mph | $1.5M | — | — | — | County |
| 20 May 2001 | Hail | Hail | 1.75 in | $1.0M | — | — | — | County |
| 1 Jul 2007 | Flood | Flood | — | $1.0M | — | — | — | County |
| 31 Mar 2023 | Wildfire | Wildfire | — | $1.0M | — | — | — | Forecast zone |
| 8 May 1993 | Thunderstorm Wind | Wind | 85 mph | $500K | — | — | — | County |
| 17 May 1993 | Thunderstorm Wind | Wind | 81 mph | $500K | — | — | — | County |
| 16 May 2003 | Thunderstorm Wind | Wind | 81 mph | $400K | — | — | — | County |
| 5 Apr 1965 | Tornado | Tornado | F2 | $250K | — | — | — | County |
| 26 Apr 1984 | Tornado | Tornado | F2 | $250K | — | — | — | County |
| 29 Jan 2002 | Ice Storm | Winter | — | $200K | — | — | — | Forecast zone |
| 11 Nov 2015 | Wildfire | Wildfire | — | $200K | — | — | — | Forecast zone |
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
| Declared | Number | Type | Incident | Title | Programs |
|---|---|---|---|---|---|
| 19 Feb 2026 | FM-5621 | Fire management assistance | Fire | Rattlesnake Fire | Public assistance |
| 30 Apr 2024 | DR-4776 | Major disaster | Tornado | Severe Storms, Straight-Line Winds, Tornadoes, And Flooding | Individual assistance, Public assistance |
| 31 Mar 2023 | FM-5460 | Fire management assistance | Fire | Gap Road Fire, Oklahoma Fmag | Public assistance |
| 24 Feb 2021 | DR-4587 | Major disaster | Severe Ice Storm | Severe Winter Storms | Public assistance |
| 17 Feb 2021 | EM-3555 | Emergency | Severe Ice Storm | Severe Winter Storm | Public assistance |
| 5 Apr 2020 | DR-4530 | Major disaster | Biological | Covid-19 Pandemic | Individual assistance, Public assistance |
| 13 Mar 2020 | EM-3462 | Emergency | Biological | Covid-19 | Public assistance |
| 1 Jun 2019 | DR-4438 | Major disaster | Severe Storm | Severe Storms, Straight-Line Winds, Tornadoes, And Flooding | Individual assistance, Public assistance |
| 11 Nov 2015 | FM-5117 | Fire management assistance | Fire | Dld Fire Complex | Public assistance |
| 13 May 2011 | DR-1985 | Major disaster | Severe Storm | Severe Winter Storm And Snowstorm | Public assistance |
| 2 Feb 2011 | EM-3316 | Emergency | Severe Storm | Severe Winter Storm | Public assistance |
| 5 Mar 2010 | DR-1883 | Major disaster | Severe Ice Storm | Severe Winter Storm | Public assistance |
| 25 Feb 2010 | DR-1876 | Major disaster | Severe Storm | Severe Winter Storm | Public assistance |
| 30 Jan 2010 | EM-3308 | Emergency | Severe Storm | Severe Winter Storm | Public assistance |
| 18 Dec 2007 | DR-1735 | Major disaster | Severe Ice Storm | Severe Winter Storms | Public assistance |
| 10 Dec 2007 | EM-3280 | Emergency | Severe Ice Storm | Severe Winter Storms | Public assistance |
| 7 Jul 2007 | DR-1712 | Major disaster | Severe Storm | Severe Storms, Flooding, And Tornadoes | Individual assistance, Public assistance |
| 1 Feb 2007 | DR-1678 | Major disaster | Severe Storm | Severe Winter Storms | Public assistance |
| 14 Jan 2007 | EM-3272 | Emergency | Severe Ice Storm | Severe Winter Storms And Flooding | Public assistance |
| 10 Jan 2006 | DR-1623 | Major disaster | Fire | Extreme Wildfire Threat | Public assistance |
| 5 Sep 2005 | EM-3219 | Emergency | Hurricane | Hurricane Katrina Evacuation | Public assistance |
| 10 May 2003 | DR-1465 | Major disaster | Severe Storm | Severe Storms And Tornadoes | Individual assistance, Public assistance |
| 1 Feb 2002 | DR-1401 | Major disaster | Severe Ice Storm | Severe Winter Ice Storm | Individual assistance, Public assistance |
| 5 Jan 2001 | DR-1355 | Major disaster | Severe Ice Storm | Severe Winter Ice Storm | Individual assistance, Public assistance |
| 28 Dec 2000 | EM-3158 | Emergency | Severe Ice Storm | Severe Winter And Ice Storm | Public assistance |
| 27 Feb 1996 | EM-3118 | Emergency | Fire | Extreme Fire Hazard | Public assistance |
| 12 May 1993 | DR-991 | Major disaster | Severe Storm | Severe Storms, Tornadoes & Flooding | Individual assistance |
| 8 May 1991 | DR-905 | Major disaster | Tornado | Severe Storms & Tornadoes | Individual assistance |
| 14 Oct 1986 | DR-778 | Major disaster | Flood | Severe Storms & Flooding | Individual assistance, Public assistance |
| 3 May 1984 | DR-704 | Major disaster | Tornado | Severe Storms & Tornadoes | Individual assistance |
| 26 Nov 1974 | DR-453 | Major disaster | Flood | Severe Storms & Flooding | Individual assistance, Public assistance |
| 22 Mar 1974 | DR-419 | Major disaster | Flood | Heavy Rains & Flooding | Individual assistance, Public assistance |
| 13 Jun 1973 | DR-392 | Major disaster | Severe Storm | Severe Storms, Flooding, & Tornadoes | Individual 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
| Year of loss | Claims | Paid claims | Amount paid | Average paid |
|---|---|---|---|---|
| 2019 | 32 | 27 | $1,913,975 | $70,888 |
| 2017 | 6 | 5 | $175,279 | $35,056 |
| 2010 | 7 | 5 | $197,274 | $39,455 |
| 2008 | 15 | 14 | $296,433 | $21,174 |
| 2007 | 76 | 70 | $2,568,921 | $36,699 |
| 2006 | 1 | 0 | $0 | — |
| 2004 | 11 | 9 | $73,081 | $8,120 |
| 2000 | 6 | 5 | $111,579 | $22,316 |
| 1997 | 10 | 5 | $21,588 | $4,318 |
| 1995 | 21 | 18 | $195,347 | $10,853 |
| 1994 | 19 | 19 | $264,694 | $13,931 |
| 1993 | 22 | 22 | $332,539 | $15,115 |
| 1992 | 1 | 1 | $1,002 | $1,002 |
| 1991 | 5 | 4 | $26,258 | $6,565 |
| 1990 | 8 | 8 | $49,471 | $6,184 |
| 1988 | 6 | 3 | $39,866 | $13,289 |
| 1986 | 101 | 90 | $2,245,073 | $24,945 |
| 1985 | 23 | 20 | $93,042 | $4,652 |
| 1982 | 1 | 0 | $0 | — |
| 1979 | 1 | 1 | $323 | $323 |
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
| Hazard (NRI) | Risk rating | Expected annual loss |
|---|---|---|
| Inland flooding | $13,947,104 | |
| Tornado | $8,124,210 | |
| Cold wave | $3,065,227 | |
| Heat wave | $2,974,324 | |
| Ice storm | $1,521,001 | |
| Strong wind | $536,908 | |
| Drought | $378,897 | |
| Wildfire | $314,622 | |
| Earthquake | $310,810 | |
| Hail | $245,163 | |
| Lightning | $229,357 | |
| Winter weather | $123,040 | |
| Hurricane | $11,556 | |
| Landslide | $1,560 |
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
| Storm | Year | Closest approach | Max wind while within 100 mi |
|---|---|---|---|
| Carla | 1961 | 90 mi | 40 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 Washington County, OK?
NCEI records 285 hail events in Washington County since 1950, in 48 different years; that is about 3.7 recorded events a year. 60 reports were golf-ball size (1.75 in) or larger.
Has Washington County had a tornado?
Yes. NCEI records 35 tornadoes in Washington County since 1950, 10 of them rated (E)F2 or stronger. Tornado deaths recorded: 1.
When was the last federal disaster declaration for Washington County?
19 Feb 2026: Rattlesnake Fire, a fire management assistance declaration for fire. The county appears in 33 declarations since 1953.
How many flood insurance claims have been filed in Washington County, and how much was paid?
372 NFIP claims since 1978, 326 of them paid, for $8.6M in total. FEMA publishes these figures redacted and aggregated; individual properties are not identified.
Is Washington County in the National Risk Index's high-risk band?
FEMA's National Risk Index (December 2025) rates the county "Relatively Low" for overall risk, "Relatively Low" for expected annual loss, "Relatively Moderate" for social vulnerability and "Relatively Moderate" for community resilience. These ratings are FEMA's relative comparison across all US counties.
How does Washington County compare with the rest of Oklahoma?
202.2 recorded events per 100 square miles against 120.9 statewide, and 7.0 NFIP claims per 1,000 residents against 3.3. 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.