County Hazards

States › Kentucky › Jefferson County

Jefferson County, Kentucky

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

FIPS 21111 · 777,874 residents (2021) · 381 sq mi · dominant hazard Wind

Hail · 208Tornado · 34Flood · 245Wind · 695Winter · 38
2026-05-16: Hail2025-03-19: Hail2025-03-15: Hail2025-03-15: Hail2025-03-15: Hail2025-03-15: Hail2025-03-15: Hail2025-03-15: Hail2025-03-13: Hail2024-04-02: Hail2024-03-14: Hail2024-03-14: Hail2023-07-18: Hail2023-07-18: Hail2023-07-18: Hail2023-06-25: Hail2023-06-25: Hail2023-06-25: Hail2023-06-25: Hail2023-06-25: Hail2023-06-25: Hail2023-06-25: Hail2023-06-25: Hail2023-06-25: Hail2023-05-09: Hail2023-05-09: Hail2023-05-09: Hail2023-01-12: Hail2021-08-26: Hail2019-04-23: Hail2018-07-20: Hail2018-07-20: Hail2018-07-20: Hail2018-07-20: Hail2018-07-20: Hail2018-07-20: Hail2018-07-20: Hail2018-07-20: Hail2018-07-20: Hail2018-07-20: Hail2018-07-20: Hail2018-07-20: Hail2018-07-20: Hail2018-07-20: Hail2018-07-20: Hail2018-07-20: Hail2017-03-30: Hail2017-03-30: Hail2017-03-30: Hail2017-02-28: Hail2016-06-23: Hail2016-06-23: Hail2016-05-10: Hail2016-05-07: Hail2016-05-07: Hail2016-05-07: Hail2015-06-30: Hail2015-06-29: Hail2015-05-27: Hail2015-05-27: Hail2015-04-25: Hail2015-04-25: 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Tornado1974-04-03: Tornado1977-06-30: Tornado1996-05-28: Tornado1997-07-27: Tornado2002-10-04: Tornado2004-05-30: Tornado2005-04-22: Tornado2006-01-02: Tornado2007-10-18: Tornado2008-01-29: Tornado2011-02-28: Tornado2011-06-22: Tornado2011-06-22: Tornado2011-06-22: Tornado2011-06-22: Tornado2012-01-17: Tornado2012-01-17: Tornado2012-03-23: Tornado2013-01-30: Tornado2018-06-26: Tornado2022-04-13: Tornado2023-03-31: Tornado2023-04-05: Tornado2023-04-05: Tornado2023-04-05: Tornado2023-05-07: Tornado2024-07-04: Tornado2024-04-02: Tornado2025-03-30: Tornado2025-04-02: Tornado2026-06-28: Flood2026-06-27: Flood2026-06-18: Flood2026-06-18: Flood2026-06-18: Flood2026-06-18: Flood2026-06-18: Flood2026-06-18: Flood2026-06-09: Flood2026-06-09: Flood2026-04-27: Flood2026-04-27: Flood2025-10-07: Flood2025-10-07: Flood2025-10-07: Flood2025-10-07: Flood2025-10-07: Flood2025-07-18: Flood2025-07-17: Flood2025-04-04: Flood2025-04-03: Flood2025-04-03: Flood2024-07-03: Flood2024-06-04: Flood2023-07-18: Flood2023-07-18: Flood2023-06-19: Flood2023-01-03: Flood2023-01-03: Flood2023-01-03: Flood2021-08-26: Flood2021-07-01: Flood2021-07-01: Flood2021-07-01: Flood2021-04-28: Flood2021-02-28: Flood2021-02-28: Flood2020-09-03: Flood2020-09-03: Flood2020-09-03: Flood2020-09-03: Flood2020-08-14: Flood2020-08-14: Flood2020-08-14: Flood2020-07-30: Flood2020-07-30: Flood2020-07-30: Flood2020-07-08: Flood2020-06-29: Flood2020-06-29: Flood2020-06-29: Flood2020-02-12: Flood2019-06-18: Flood2019-06-18: Flood2019-02-20: Flood2018-09-24: Flood2018-09-08: Flood2018-09-08: Flood2018-09-08: Flood2018-09-08: Flood2018-09-08: Flood2018-09-08: Flood2018-09-08: Flood2018-09-08: Flood2018-09-08: Flood2018-08-19: Flood2018-08-16: Flood2018-07-20: Flood2018-07-20: Flood2018-07-20: Flood2018-07-02: Flood2018-07-02: Flood2018-06-26: Flood2018-06-26: Flood2018-06-26: Flood2018-06-26: Flood2018-06-26: Flood2018-05-05: Flood2018-05-05: Flood2018-03-01: Flood2018-03-01: Flood2018-02-25: Flood2018-02-25: Flood2018-02-25: Flood2018-02-24: Flood2018-02-24: Flood2018-02-24: Flood2018-02-24: Flood2018-02-24: Flood2018-02-24: Flood2018-02-24: Flood2018-02-24: Flood2018-02-24: Flood2018-02-24: Flood2018-02-24: Flood2018-02-24: Flood2018-02-24: Flood2018-02-24: Flood2018-02-24: Flood2018-02-23: Flood2018-02-23: Flood2018-02-23: Flood2018-02-23: Flood2018-02-23: Flood2018-02-23: Flood2018-02-23: Flood2018-02-23: Flood2018-02-23: Flood2018-02-23: Flood2018-02-23: Flood2018-02-23: Flood2018-02-23: Flood2018-02-23: Flood2018-02-22: Flood2018-02-22: Flood2018-02-20: Flood2018-02-19: Flood2017-04-29: Flood2015-07-14: Flood2015-07-14: Flood2026-06-26: Wind2026-06-26: Wind2026-06-25: Wind2026-06-21: Wind2026-06-18: Wind2026-06-18: Wind2026-06-18: Wind2026-06-18: Wind2026-06-18: Wind2026-06-18: Wind2026-06-18: Wind2026-06-18: Wind2026-06-18: Wind2026-06-18: Wind2026-06-18: Wind2026-05-19: Wind2026-05-19: Wind2026-05-19: Wind2026-04-27: Wind2026-04-27: Wind2026-03-15: Wind2025-12-28: Wind2025-08-19: Wind2025-06-26: Wind2025-06-26: Wind2025-06-26: Wind2025-06-26: Wind2025-06-26: Wind2025-06-26: Wind2025-06-18: Wind2025-06-18: Wind2025-06-18: Wind2025-05-16: Wind2025-05-16: Wind2025-05-16: Wind2025-05-16: Wind2025-05-16: Wind2025-05-02: Wind2025-05-02: Wind2025-05-02: Wind2025-05-02: Wind2025-05-02: Wind2025-05-02: Wind2025-05-02: Wind2025-05-02: Wind2025-05-02: Wind2025-05-02: Wind2025-05-02: Wind2025-05-02: Wind2025-04-02: Wind2025-04-02: Wind2025-03-30: Wind2025-03-30: Wind2025-03-30: Wind2025-03-30: Wind2025-03-30: Wind2025-03-30: Wind2025-03-30: Wind2025-03-30: Wind2025-03-19: Wind2025-03-19: Wind2025-03-19: Wind2025-03-15: Wind2025-03-15: Wind2025-03-15: Wind2025-03-15: Wind2025-03-15: Wind2024-08-01: Wind2024-08-01: Wind2024-08-01: Wind2024-08-01: Wind2024-08-01: Wind2024-07-04: Wind2024-07-04: Wind2024-06-25: Wind2024-05-26: Wind2024-05-26: Wind2024-05-26: Wind2024-05-26: Wind2024-05-26: Wind2024-05-26: Wind2024-05-26: Wind2024-05-26: Wind2024-05-26: Wind2024-05-26: Wind2024-05-26: Wind2024-04-18: Wind2024-04-18: Wind2023-08-25: Wind2023-08-25: Wind2023-08-25: Wind2023-08-25: Wind2023-08-25: Wind2023-08-25: Wind2023-08-12: Wind2023-08-12: Wind2023-08-07: Wind2023-08-07: Wind2023-07-18: Wind2023-07-08: Wind2023-06-25: Wind2023-06-25: Wind2023-06-25: Wind2023-06-25: Wind2023-06-25: Wind2023-06-25: Wind2023-05-07: Wind2023-05-07: Wind2023-04-05: Wind2023-04-05: Wind2023-04-05: Wind2023-04-05: Wind2023-04-05: Wind2023-04-05: Wind2023-04-05: Wind2023-04-01: Wind2023-03-31: Wind2023-03-31: Wind2023-03-31: Wind
Jefferson County within Kentucky. 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.

Jefferson County, Kentucky, has 1,264 weather events in the NCEI Storm Events record since 1950, most of them damaging wind.

That is 331.9 events per 100 square miles, above the Kentucky figure of 140.0, and 16.2 per 10,000 residents against 122.6 statewide.

46 events fall in the 12 months to 30 Jun 2026. NCEI attributes 27 deaths and 272 injuries to events in the county, with property damage estimated at $284M.

FEMA has designated the county in 25 federal disaster declarations since 1953; the most recent is Severe Winter Storm (emergency, 24 Jan 2026).

National Flood Insurance Program policyholders in the county filed 5,557 claims since 1978, of which 4,445 were paid, totalling $99M (about $22K per paid claim). FEMA counts 2,982 residential flood policies in force.

FEMA's National Risk Index rates the county's overall risk as "Relatively High" and its expected annual loss as "Relatively High" ($342M a year across 18 hazards).

4 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.

46events, last 12 monthsto 30 Jun 2026
1,264events since 195027 deaths, 272 injuries recorded
25disaster declarationslast 24 Jan 2026
5,557NFIP flood claims$99M paid

Compared with Kentucky and the United States

MeasureJefferson CountyKentuckyUS
Recorded events since 19501,26455,2851,977,440
Events per 100 square miles331.9140.056.0
Events per 10,000 residents16.2122.659.6
Events in the last 12 months461,25462,008
Deaths recorded by NCEI2759926,435
Property damage (NCEI estimates)$284M$3.5B$575B
NFIP claims per 1,000 residents7.16.28.1
Average paid NFIP claim$22K$22K$43K
Claims per 100 policies in force, last 10 years22.137.316.1

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

Wind: 4
Hail: 7Tornado: 2Wind: 17
Hail: 9Tornado: 4Wind: 29
Hail: 19Wind: 44
Hail: 12Tornado: 2Flood: 19Wind: 61Winter: 5Lightning: 3
Hail: 62Tornado: 6Flood: 42Wind: 132Winter: 7Lightning: 11Other: 2
Hail: 70Tornado: 10Flood: 132Wind: 240Winter: 19Heat: 3Cold: 6Lightning: 7Other: 9
Hail: 29Tornado: 10Flood: 52Wind: 168Winter: 7Lightning: 3
41950s261960s421970s631980s1021990s2622000s4962010s2692020s
Recorded events in Jefferson County by decade and hazard group. HailTornadoFloodWindWinterHeatColdLightningOther NCEI recorded only tornadoes, hail and thunderstorm wind before 1996.

Trend: 868 events in the 20 years to 2025 against 252 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

Wind695
Flood245
Hail208
Winter38
Tornado34
Lightning24
Other11
Cold6
Heat3
HazardEventsDeathsShare of state's events
■ Wind69553.1%detail
■ Flood24543.0%detail
■ Hail208—3.1%detail
■ Winter3880.5%detail
■ Tornado3432.3%detail
■ Lightning24210.0%
■ Other1111.1%
■ Cold620.3%
■ Heat320.1%

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
3 Apr 1974TornadoTornadoF4——3225County
27 Jan 2009Winter StormWinter———3—Forecast zone
3 Feb 1998Heavy SnowWinter———24Forecast zone
19 Jul 2012LightningLightning—$90K—2—County
24 Jan 2026Winter StormWinter———2—Forecast zone
1 Mar 1997FloodFlood—$85M—1—Forecast zone
23 Dec 2008Winter WeatherWinter—$80K—14Forecast zone
10 Nov 1998High WindWind49 mph$15K—12Forecast zone
14 Sep 2008High WindWind75 mph——12Forecast zone
21 May 2011Excessive HeatHeat———11Forecast zone
20 Apr 2000Thunderstorm WindWind81 mph$15K—1—County
8 Sep 2018Flash FloodFlood—$10K—1—County
11 Feb 2010Cold/Wind ChillCold———1—Forecast zone
6 Jul 2012HeatHeat———1—Forecast zone
10 Jul 2013Thunderstorm WindWind64 mph——1—County
14 Mar 2015FloodFlood———1—County
20 Feb 2015Cold/Wind ChillCold———1—Forecast zone
31 Aug 2018Heavy RainOther———1—County
26 May 2024Thunderstorm WindWind81 mph——1—County
28 Jun 2026FloodFlood———1—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
24 Jan 2026EM-3633EmergencyWinter StormSevere Winter StormPublic assistance
24 Apr 2025DR-4864Major disasterSevere StormSevere Storms, Straight-Line Winds, Tornadoes, Flooding, Landslides, And MudslidesIndividual assistance, Public assistance
3 Apr 2025EM-3626EmergencySevere StormSevere Storms, Straight-Line Winds, Tornadoes, And FloodingPublic assistance
24 Feb 2025DR-4860Major disasterSevere StormSevere Storms, Straight-Line Winds, Flooding, Landslides, And MudslidesPublic assistance
16 Feb 2025EM-3624EmergencySevere StormSevere Storms, Straight-Line Winds, Flooding, And LandslidesPublic assistance
22 May 2024DR-4782Major disasterSevere StormSevere Storms, Straight-Line Winds, Tornadoes, Landslides, And MudslidesIndividual assistance
10 Apr 2023DR-4702Major disasterSevere StormSevere Storms, Straight-Line Winds, Tornadoes, Flooding, Landslides, And MudslidesPublic assistance
28 Mar 2020DR-4497Major disasterBiologicalCovid-19 PandemicIndividual assistance, Public assistance
13 Mar 2020EM-3469EmergencyBiologicalCovid-19Public assistance
26 Apr 2018DR-4361Major disasterFloodSevere Storms, Tornadoes, Flooding, Landslides, And MudslidesPublic assistance
1 May 2015DR-4217Major disasterFloodSevere Storms, Tornadoes, Flooding, Landslides, And MudslidesIndividual assistance, Public assistance
4 May 2011DR-1976Major disasterSevere StormSevere Storms, Tornadoes, And FloodingIndividual assistance
14 Aug 2009DR-1855Major disasterSevere StormSevere Storms, Straight-Line Winds And FloodingIndividual assistance, Public assistance
5 Feb 2009DR-1818Major disasterSevere Ice StormSevere Winter Storm And FloodingPublic assistance
28 Jan 2009EM-3302EmergencySevere Ice StormSevere Winter StormPublic assistance
9 Oct 2008DR-1802Major disasterSevere StormSevere Wind Storm Associated With Tropical Depression IkePublic assistance
10 Sep 2005EM-3231EmergencyHurricaneHurricane KatrinaPublic assistance
10 Jun 2004DR-1523Major disasterSevere StormSevere Storms, Tornadoes, Flooding, And MudslidesIndividual assistance
3 Jun 2003DR-1471Major disasterSevere StormSevere Storms, Flooding, Mud And Rock Slides, And TornadoesIndividual assistance
4 Mar 1997DR-1163Major disasterSevere StormSevere Storm, Flooding, And TornadoesIndividual assistance, Public assistance
13 Jan 1996DR-1089Major disasterSnowstormBlizzard Of 96Public assistance
24 Feb 1989DR-821Major disasterFloodSevere Storms & FloodingIndividual assistance, Public assistance
17 Mar 1981DR-636Major disasterToxic SubstancesSewer Explosion, Toxic WastePublic assistance
12 Dec 1978DR-568Major disasterFloodSevere Storms & FloodingIndividual assistance, Public assistance
4 Apr 1974DR-420Major disasterTornadoTornadoesIndividual 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 Jefferson County, 1978 to 2026 (hover for the amount paid).
Claims since 19785,557
Paid claims4,445
Total paid$99M
Average paid claim$22K
Repetitive-loss properties37892 severe
Residential policies in force2,9821.2% of 243,583 structures
Year of lossClaimsPaid claimsAmount paidAverage paid
202695$68,728$13,746
2025251201$13,761,749$68,466
202432$4,562$2,281
2023124$69,670$17,417
202221$168,090$168,090
20212719$571,122$30,059
20201411$112,139$10,194
20194434$757,544$22,281
2018289243$13,601,016$55,971
201783$23,614$7,871
201630$0—
2015587485$12,737,081$26,262
201453$35,028$11,676
2013212176$4,621,283$26,257
20121610$111,847$11,185
2011258201$5,006,632$24,909
20102614$89,092$6,364
2009327278$3,275,326$11,782
20089169$742,789$10,765
2007133$7,936$2,645
2006287243$5,608,737$23,081
20056762$964,796$15,561
20047261$734,149$12,035
20032616$344,816$21,551
20023322$164,578$7,481

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 Highscore 98.3 of 100
Expected annual loss$342MRelatively High
Social vulnerabilityRelatively Moderate
Community resilienceRelatively High
Hazard (NRI)Risk ratingExpected annual loss
Inland floodingRelatively High$212,824,711
TornadoVery High$80,249,218
EarthquakeRelatively Moderate$24,776,977
Cold waveRelatively High$10,011,144
Heat waveRelatively High$8,342,792
Strong windRelatively High$1,929,883
HailRelatively Moderate$1,516,812
LightningRelatively High$1,170,287
Ice stormRelatively High$568,584
Winter weatherRelatively High$438,107
WildfireVery Low$60,881
HurricaneVery Low$20,235
DroughtVery Low$4,961
LandslideVery Low$422

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 miles4
Tracks within 50 miles1
Hurricane strength within 50 miles0
StormYearClosest approachMax wind while within 100 mi
Helene202452 mi46 mph
Unnamed Atlantic storm191589 mi40 mph
Unnamed Atlantic storm189297 mi46 mph
Unnamed Atlantic storm188838 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 Jefferson County, KY?

NCEI records 208 hail events in Jefferson County since 1950, in 50 different years; that is about 2.7 recorded events a year. 48 reports were golf-ball size (1.75 in) or larger.

Has Jefferson County had a tornado?

Yes. NCEI records 34 tornadoes in Jefferson County since 1950, 7 of them rated (E)F2 or stronger. Tornado deaths recorded: 3.

When was the last federal disaster declaration for Jefferson County?

24 Jan 2026: Severe Winter Storm, a emergency declaration for winter storm. The county appears in 25 declarations since 1953.

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

5,557 NFIP claims since 1978, 4,445 of them paid, for $99M in total. FEMA publishes these figures redacted and aggregated; individual properties are not identified.

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

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

How does Jefferson County compare with the rest of Kentucky?

331.9 recorded events per 100 square miles against 140.0 statewide, and 7.1 NFIP claims per 1,000 residents against 6.2. 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.