County Hazards

States › Oklahoma › Stephens County

Stephens County, Oklahoma

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

FIPS 40137 · 43,129 residents (2021) · 870 sq mi · dominant hazard Hail

Hail · 598Tornado · 70Flood · 72Wind · 315Winter · 46
2026-05-08: Hail2026-05-08: Hail2026-04-25: Hail2026-04-25: Hail2026-04-25: Hail2026-04-25: Hail2026-04-25: Hail2026-04-25: Hail2026-04-25: Hail2026-03-10: Hail2026-03-10: Hail2026-03-10: Hail2025-11-19: Hail2025-05-22: Hail2025-05-22: Hail2025-05-22: Hail2025-05-22: Hail2025-05-22: Hail2025-05-22: Hail2025-05-22: Hail2025-05-19: Hail2025-04-05: Hail2025-04-05: Hail2025-04-05: Hail2025-04-01: Hail2025-04-01: Hail2025-04-01: Hail2025-04-01: Hail2025-04-01: Hail2025-03-29: Hail2025-03-29: Hail2025-03-29: Hail2025-03-29: Hail2025-03-29: Hail2024-05-09: Hail2024-05-09: Hail2024-05-09: Hail2024-05-09: Hail2024-04-27: Hail2024-04-27: Hail2024-04-27: Hail2024-04-27: Hail2024-04-09: Hail2023-06-15: Hail2023-06-15: Hail2023-06-15: Hail2023-06-15: Hail2023-06-15: Hail2023-06-15: Hail2023-06-15: Hail2023-06-12: Hail2023-06-12: Hail2023-04-19: Hail2023-03-16: Hail2023-03-16: Hail2023-03-16: Hail2022-12-13: Hail2022-05-02: Hail2021-12-17: Hail2021-11-10: Hail2021-04-23: Hail2020-08-30: Hail2020-05-15: Hail2020-05-15: Hail2020-05-15: Hail2020-05-15: Hail2020-05-08: Hail2020-05-08: Hail2020-05-08: Hail2020-05-08: Hail2020-04-28: Hail2020-04-28: Hail2020-04-28: Hail2020-04-28: Hail2020-04-28: Hail2020-04-28: Hail2020-04-22: Hail2020-04-21: Hail2020-04-21: Hail2020-04-21: Hail2020-04-11: Hail2020-04-11: Hail2020-04-11: Hail2020-04-11: Hail2020-04-11: Hail2020-04-11: Hail2019-08-27: Hail2019-06-23: Hail2019-05-01: Hail2019-05-01: Hail2019-05-01: Hail2019-05-01: Hail2019-05-01: Hail2019-03-23: Hail2018-11-30: Hail2018-05-15: Hail2018-03-25: Hail2018-03-25: Hail2018-03-25: Hail2017-10-21: Hail2017-10-21: Hail2017-07-08: Hail2017-05-27: Hail2017-05-27: Hail2017-05-27: Hail2017-05-27: Hail2017-05-18: Hail2017-04-16: Hail2016-05-27: Hail2016-05-27: Hail2016-05-11: Hail2016-05-11: Hail2016-05-11: Hail2016-05-11: Hail2016-05-11: Hail2016-04-29: Hail2016-04-10: Hail2015-05-26: Hail2015-05-26: Hail2015-05-26: Hail1951-04-30: Tornado1953-06-19: Tornado1954-05-01: Tornado1955-04-22: Tornado1955-04-11: Tornado1955-04-11: Tornado1955-05-26: Tornado1957-09-20: Tornado1957-05-24: Tornado1957-05-24: Tornado1957-04-20: Tornado1960-05-19: Tornado1960-05-23: Tornado1961-05-03: Tornado1961-05-13: Tornado1962-05-20: Tornado1962-07-28: Tornado1963-03-30: Tornado1966-02-08: Tornado1969-04-16: Tornado1970-06-11: Tornado1970-09-07: Tornado1973-04-19: Tornado1975-02-22: Tornado1975-02-22: Tornado1977-05-05: Tornado1977-05-15: Tornado1977-03-02: Tornado1977-04-18: Tornado1977-04-18: Tornado1978-04-05: Tornado1978-04-05: Tornado1979-04-10: Tornado1982-05-20: Tornado1983-06-27: Tornado1990-03-13: Tornado1990-03-13: Tornado1991-04-02: Tornado1993-05-08: Tornado1995-04-17: Tornado1995-04-17: Tornado1997-05-25: Tornado1998-04-06: Tornado2003-05-08: Tornado2003-05-08: Tornado2005-06-04: Tornado2005-06-04: Tornado2010-05-10: Tornado2010-05-10: Tornado2013-05-20: Tornado2013-05-20: Tornado2014-04-13: Tornado2014-04-13: Tornado2016-05-08: Tornado2017-05-18: Tornado2020-04-21: Tornado2021-11-10: Tornado2022-12-13: Tornado2023-06-15: Tornado2023-06-15: Tornado2023-06-15: Tornado2023-06-15: Tornado2023-06-15: Tornado2023-03-16: Tornado2024-11-03: Tornado2024-11-03: Tornado2024-11-03: Tornado2007-03-30: Flood2007-03-30: Flood2007-06-28: Flood2007-06-15: Flood2007-06-26: Flood2007-06-26: Flood2007-05-26: Flood2007-05-27: Flood2007-05-27: Flood2009-04-29: Flood2015-06-17: Flood2015-06-18: Flood2015-06-18: Flood2015-06-18: Flood2015-06-18: Flood2015-05-28: Flood2015-05-09: Flood2015-05-09: Flood2015-05-09: Flood2015-05-08: Flood2015-05-09: Flood2015-05-16: Flood2015-05-28: Flood2016-06-12: Flood2016-06-12: Flood2016-11-02: Flood2017-06-30: Flood2018-09-07: Flood2019-05-28: Flood2019-03-23: Flood2019-04-30: Flood2019-05-01: Flood2020-03-19: Flood2020-05-15: Flood2020-05-15: Flood2020-05-15: Flood2020-05-15: Flood2020-05-15: Flood2023-10-04: Flood2024-04-27: Flood2024-04-27: Flood2024-04-27: Flood2025-05-02: Flood2025-04-30: Flood2025-04-30: Flood2025-04-30: Flood2025-04-30: Flood2025-04-30: Flood2025-04-30: Flood2025-04-26: Flood2025-04-30: Flood2025-04-30: Wind2025-04-30: Wind2025-04-05: Wind2024-11-03: Wind2024-11-03: Wind2024-11-03: Wind2024-11-03: Wind2024-07-04: Wind2024-07-04: Wind2024-06-04: Wind2024-05-23: Wind2024-04-27: Wind2024-04-27: Wind2024-04-27: Wind2023-07-09: Wind2023-07-07: Wind2023-06-15: Wind2023-06-15: Wind2023-06-15: Wind2023-06-15: Wind2023-03-16: Wind2023-02-26: Wind2023-02-26: Wind2023-02-26: Wind2021-10-10: Wind2021-07-10: Wind2021-06-13: Wind2021-06-12: Wind2021-06-12: Wind2020-07-30: Wind2020-05-15: Wind2020-05-15: Wind2020-05-15: Wind2020-05-15: Wind2020-04-21: Wind2020-03-28: Wind2019-10-20: Wind2019-06-19: Wind2019-06-19: Wind2019-05-21: Wind2018-07-30: Wind2018-07-30: Wind2018-06-24: Wind2018-06-24: Wind2018-05-29: Wind2018-05-29: Wind2018-05-19: Wind2017-10-21: Wind2017-05-18: Wind2016-10-06: Wind2016-10-06: Wind2016-10-06: Wind2016-06-27: Wind2016-06-12: Wind2016-05-23: Wind2016-04-29: Wind2016-04-10: Wind2016-04-10: Wind2016-04-10: Wind2015-05-28: Wind2015-05-28: Wind2015-05-25: Wind2015-05-25: Wind2015-05-16: Wind2015-05-16: Wind2015-05-08: Wind2015-05-07: Wind2015-05-07: Wind2015-05-06: Wind2014-10-12: Wind2014-07-30: Wind2014-06-23: Wind2013-06-04: Wind2013-05-30: Wind2013-05-08: Wind2012-09-26: Wind2012-07-14: Wind2012-07-14: Wind2011-05-24: Wind2011-05-11: Wind2010-05-13: Wind2010-05-13: Wind2010-05-13: Wind2009-10-29: Wind2009-10-08: Wind2009-08-26: Wind2009-08-26: Wind2009-08-05: Wind2009-07-04: Wind2009-06-10: Wind2009-06-10: Wind2009-05-13: Wind2009-05-13: Wind2009-02-10: Wind2008-11-05: Wind2008-11-05: Wind2008-08-14: Wind2008-08-14: Wind2008-06-05: Wind2008-05-07: Wind2008-05-07: Wind2007-05-30: Wind2007-04-10: Wind2006-06-17: Wind2006-05-02: Wind2006-05-02: Wind2006-05-02: Wind2006-03-30: Wind2005-08-13: Wind2005-08-13: Wind2005-06-16: Wind
Stephens County within Oklahoma. 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.

Stephens County, Oklahoma, has 1,341 weather events in the NCEI Storm Events record since 1950, most of them hail.

That is 154.1 events per 100 square miles, above the Oklahoma figure of 120.9, and 310.9 per 10,000 residents against 208.0 statewide.

35 events fall in the 12 months to 30 Jun 2026. NCEI attributes 5 deaths and 36 injuries to events in the county, with property damage estimated at $20M and crop damage at $8.3M.

FEMA has designated the county in 35 federal disaster declarations since 1953; the most recent is Severe Storms, Straight-Line Winds, Tornadoes, And Flooding (major disaster, 18 Mar 2025).

National Flood Insurance Program policyholders in the county filed 91 claims since 1978, of which 71 were paid, totalling $919K (about $13K per paid claim). FEMA counts 39 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" ($23M a year across 18 hazards).

3 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.

35events, last 12 monthsto 30 Jun 2026
1,341events since 19505 deaths, 36 injuries recorded
35disaster declarationslast 18 Mar 2025
91NFIP flood claims$919K paid

Compared with Oklahoma and the United States

MeasureStephens CountyOklahomaUS
Recorded events since 19501,34182,9191,977,440
Events per 100 square miles154.1120.956.0
Events per 10,000 residents310.9208.059.6
Events in the last 12 months352,57062,008
Deaths recorded by NCEI570526,435
Property damage (NCEI estimates)$20M$9.6B$575B
NFIP claims per 1,000 residents2.13.38.1
Average paid NFIP claim$13K$24K$43K
Claims per 100 policies in force, last 10 years20.517.016.1

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

Hail: 2Tornado: 11Wind: 4
Hail: 16Tornado: 9Wind: 5
Hail: 13Tornado: 13Wind: 15
Hail: 69Tornado: 2Wind: 25
Hail: 157Tornado: 9Flood: 6Wind: 85Winter: 9Heat: 2Cold: 2Lightning: 9Fog: 3
Hail: 147Tornado: 6Flood: 25Wind: 95Winter: 12Heat: 3Drought: 19Wildfire: 3Lightning: 1Fog: 6Other: 3
Hail: 108Tornado: 8Flood: 22Wind: 49Winter: 15Drought: 58Wildfire: 1
Hail: 86Tornado: 12Flood: 19Wind: 37Winter: 10Heat: 86Cold: 9Drought: 35
171950s301960s411970s961980s2821990s3202000s2612010s2942020s
Recorded events in Stephens County by decade and hazard group. HailTornadoFloodWindWinterHeatColdDroughtWildfireLightningFogOther NCEI recorded only tornadoes, hail and thunderstorm wind before 1996.

Trend: 663 events in the 20 years to 2025 against 536 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

Hail598
Wind315
Drought112
Heat91
Flood72
Tornado70
Winter46
Cold11
Lightning10
Fog9
Wildfire4
Other3
HazardEventsDeathsShare of state's events
■ Hail598—1.9%detail
■ Wind315—1.3%detail
■ Drought112—1.7%
■ Heat9111.9%
■ Flood7221.7%detail
■ Tornado7011.4%detail
■ Winter4611.2%detail
■ Cold11—1.7%
■ Lightning10—2.7%
■ Fog9—2.9%
■ Wildfire4—0.7%
■ Other3—1.3%

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
15 May 1977TornadoTornadoF3$250K—12County
12 Jan 2007Winter StormWinter—$20K—1—Forecast zone
20 Jul 1998HeatHeat———1—Forecast zone
12 Jun 2016Flash FloodFlood———1—County
1 May 2019Flash FloodFlood———1—County
3 Nov 2024TornadoTornadoEF3$5.0M——6County
27 Nov 2005WildfireWildfire—$1.0M——4Forecast zone
22 Feb 1975TornadoTornadoF2$250K——4County
19 Apr 1973TornadoTornadoF2$25K——4County
20 Mar 2010Winter WeatherWinter————3Forecast zone
8 Feb 1966TornadoTornadoF2$250K——2County
22 Feb 1975TornadoTornadoF2$250K——2County
11 Jun 1970TornadoTornadoF1$25K——2County
22 Apr 1955TornadoTornadoF1$3K——2County
28 Jul 1962TornadoTornadoF2$250K——1County
16 Apr 1969TornadoTornadoF2$250K——1County
2 Mar 1977TornadoTornadoF3$250K——1County
20 Apr 1957TornadoTornadoF1$3K——1County
19 Jun 1953TornadoTornadoF1$250——1County
1 Aug 2000DroughtDrought——$8.3M——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

DeclaredNumberTypeIncidentTitlePrograms
18 Mar 2025DR-4862Major disasterSevere StormSevere Storms, Straight-Line Winds, Tornadoes, And FloodingPublic assistance
15 Mar 2025FM-5564Fire management assistanceFireWildhorse FirePublic assistance
19 Jul 2023DR-4721Major disasterSevere StormSevere Storms, Straight-Line Winds, And TornadoesPublic assistance
24 Feb 2021DR-4587Major disasterSevere Ice StormSevere Winter StormsIndividual assistance, Public assistance
17 Feb 2021EM-3555EmergencySevere Ice StormSevere Winter StormPublic assistance
21 Dec 2020DR-4575Major disasterSevere Ice StormSevere Winter StormPublic assistance
5 Apr 2020DR-4530Major disasterBiologicalCovid-19 PandemicIndividual assistance, Public assistance
13 Mar 2020EM-3462EmergencyBiologicalCovid-19Public assistance
12 Jul 2019DR-4453Major disasterSevere StormSevere Storms, Tornadoes, Straight-Line Winds, And FloodingPublic assistance
15 Jul 2016DR-4274Major disasterFloodSevere Storms And FloodingPublic assistance
26 May 2015DR-4222Major disasterSevere StormSevere Storms, Tornadoes, Straight-Line Winds, And FloodingIndividual assistance, Public assistance
13 May 2011DR-1985Major disasterSevere StormSevere Winter Storm And SnowstormPublic assistance
2 Feb 2011EM-3316EmergencySevere StormSevere Winter StormPublic assistance
5 Mar 2010DR-1883Major disasterSevere Ice StormSevere Winter StormPublic assistance
25 Feb 2010DR-1876Major disasterSevere StormSevere Winter StormPublic assistance
30 Jan 2010EM-3308EmergencySevere StormSevere Winter StormPublic assistance
19 Jun 2009DR-1846Major disasterFireWildfiresIndividual assistance
10 Apr 2009FM-2812Fire management assistanceFireVelma FirePublic assistance
10 Dec 2007EM-3280EmergencySevere Ice StormSevere Winter StormsPublic assistance
31 Aug 2007DR-1723Major disasterSevere StormSevere Storms, Flooding, And TornadoesPublic assistance
24 Aug 2007DR-1718Major disasterSevere StormSevere Storms, Tornadoes, And FloodingIndividual assistance, Public assistance
7 Jul 2007DR-1712Major disasterSevere StormSevere Storms, Flooding, And TornadoesIndividual assistance, Public assistance
1 Feb 2007DR-1678Major disasterSevere StormSevere Winter StormsPublic assistance
14 Jan 2007EM-3272EmergencySevere Ice StormSevere Winter Storms And FloodingPublic assistance
10 Jan 2006DR-1623Major disasterFireExtreme Wildfire ThreatIndividual assistance, Public assistance
5 Sep 2005EM-3219EmergencyHurricaneHurricane Katrina EvacuationPublic assistance
1 Feb 2002DR-1401Major disasterSevere Ice StormSevere Winter Ice StormIndividual assistance
29 Jun 2001DR-1384Major disasterSevere StormSevere Storms, Flooding, And TornadoesPublic assistance
5 Jan 2001DR-1355Major disasterSevere Ice StormSevere Winter Ice StormIndividual assistance, Public assistance
28 Dec 2000EM-3158EmergencySevere Ice StormSevere Winter And Ice StormPublic assistance
18 May 1990DR-866Major disasterSevere StormSevere Storms, Tornadoes & FloodingIndividual assistance, Public assistance
9 Jul 1987DR-794Major disasterFloodSevere Storms & FloodingPublic assistance
26 Oct 1983DR-693Major disasterFloodSevere Storms & FloodingPublic assistance
13 Apr 1979DR-576Major disasterTornadoSevere Storms & TornadoesIndividual assistance, Public assistance
13 Jun 1973DR-392Major disasterSevere StormSevere Storms, Flooding, & TornadoesIndividual 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 Stephens County, 1978 to 2026 (hover for the amount paid).
Claims since 197891
Paid claims71
Total paid$919K
Average paid claim$13K
Repetitive-loss properties72 severe
Residential policies in force390.2% of 20,326 structures
Year of lossClaimsPaid claimsAmount paidAverage paid
202610$0—
202554$298,183$74,546
201911$6,291$6,291
201711$22,313$22,313
201653$75,325$25,108
201543$7,447$2,482
201110$0—
200922$16,280$8,140
200811$953$953
20072419$267,748$14,092
200011$590$590
199611$4,582$4,582
199521$18,774$18,774
199211$13,852$13,852
199143$23,797$7,932
199022$7,626$3,813
198922$10,703$5,351
1988108$99,887$12,486
198787$20,378$2,911
198610$0—
198511$1,387$1,387
198411$1,232$1,232
198287$17,160$2,451
198111$2,487$2,487
197910$0—

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 Lowscore 65.9 of 100
Expected annual loss$23MRelatively Low
Social vulnerabilityRelatively Moderate
Community resilienceRelatively Low
Hazard (NRI)Risk ratingExpected annual loss
Inland floodingRelatively Low$6,660,074
TornadoRelatively Moderate$6,224,758
Cold waveRelatively Moderate$1,902,150
HailRelatively Moderate$1,756,227
Heat waveRelatively Moderate$1,596,361
Strong windRelatively High$1,411,677
WildfireRelatively Low$980,601
Ice stormRelatively High$693,047
DroughtRelatively Moderate$613,196
EarthquakeRelatively Low$472,395
LightningRelatively Low$127,481
Winter weatherRelatively Moderate$89,878
HurricaneVery Low$13,294
LandslideVery Low$833

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 miles3
Tracks within 50 miles1
Hurricane strength within 50 miles0
StormYearClosest approachMax wind while within 100 mi
Erin200778 mi58 mph
Carla196150 mi40 mph
Unnamed Atlantic storm190015 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 Stephens County, OK?

NCEI records 598 hail events in Stephens County since 1950, in 63 different years; that is about 7.8 recorded events a year. 189 reports were golf-ball size (1.75 in) or larger.

Has Stephens County had a tornado?

Yes. NCEI records 70 tornadoes in Stephens County since 1950, 19 of them rated (E)F2 or stronger. Tornado deaths recorded: 1.

When was the last federal disaster declaration for Stephens County?

18 Mar 2025: Severe Storms, Straight-Line Winds, Tornadoes, And Flooding, a major disaster declaration for severe storm. The county appears in 35 declarations since 1953.

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

91 NFIP claims since 1978, 71 of them paid, for $919K in total. FEMA publishes these figures redacted and aggregated; individual properties are not identified.

Is Stephens 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 Low" for community resilience. These ratings are FEMA's relative comparison across all US counties.

How does Stephens County compare with the rest of Oklahoma?

154.1 recorded events per 100 square miles against 120.9 statewide, and 2.1 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.