County Hazards

States › Ohio › Mahoning County

Mahoning County, Ohio

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

FIPS 39099 · 226,762 residents (2021) · 411 sq mi · dominant hazard Wind

Hail · 126Tornado · 17Flood · 37Wind · 309Winter · 41
1979-05-12: Hail1980-07-08: Hail1980-07-21: Hail1985-05-31: Hail1985-05-31: Hail1985-05-27: Hail1985-05-27: Hail1985-03-28: Hail1985-03-28: Hail1986-06-16: Hail1987-05-30: Hail1988-05-15: Hail1991-03-02: Hail1996-05-01: Hail1998-06-12: Hail1998-06-02: Hail1998-09-07: Hail1998-06-02: Hail1998-06-13: Hail1999-07-28: Hail2000-05-18: Hail2000-06-02: Hail2001-04-09: Hail2001-04-09: Hail2001-04-09: Hail2001-04-09: Hail2001-04-09: Hail2001-04-09: Hail2002-11-10: Hail2002-04-15: Hail2002-04-28: Hail2002-05-30: Hail2002-05-30: Hail2002-05-31: Hail2002-06-05: Hail2002-08-03: Hail2003-05-10: Hail2003-05-10: Hail2003-07-07: Hail2004-06-17: Hail2004-06-24: Hail2004-08-27: Hail2005-05-13: Hail2005-06-29: Hail2005-06-28: Hail2005-06-30: Hail2006-04-12: Hail2006-04-12: Hail2006-04-12: Hail2006-06-22: Hail2006-06-28: Hail2006-07-10: Hail2006-07-10: Hail2006-07-10: Hail2007-05-01: Hail2007-05-01: Hail2007-06-13: Hail2007-06-13: Hail2007-06-08: Hail2008-07-26: Hail2008-07-26: Hail2008-07-26: Hail2008-06-21: Hail2008-06-21: Hail2008-06-23: Hail2008-06-21: Hail2008-06-21: Hail2008-06-10: Hail2008-07-22: Hail2009-07-21: Hail2009-07-21: Hail2009-07-21: Hail2009-06-17: Hail2009-07-21: Hail2011-05-25: Hail2011-05-25: Hail2012-05-07: Hail2012-05-29: Hail2012-07-27: Hail2012-09-07: Hail2012-07-26: Hail2012-07-26: Hail2012-07-26: Hail2012-07-03: Hail2014-05-14: Hail2014-05-14: Hail2014-05-14: Hail2014-05-14: Hail2015-06-11: Hail2015-06-11: Hail2015-06-11: Hail2015-06-11: Hail2015-06-14: Hail2017-08-19: Hail2017-03-30: Hail2019-05-28: Hail2019-05-28: Hail2019-05-28: Hail2019-12-01: Hail2020-03-28: Hail2020-04-07: Hail2022-05-21: Hail2022-09-25: Hail2023-08-12: Hail2023-08-12: Hail2024-05-25: Hail2024-04-14: Hail2024-04-14: Hail2024-04-14: Hail1955-03-01: Tornado1955-03-22: Tornado1956-08-05: Tornado1963-04-19: Tornado1976-02-16: Tornado1981-06-22: Tornado1987-06-27: Tornado1990-07-22: Tornado1990-07-22: Tornado1991-07-23: Tornado1991-07-23: Tornado1995-07-15: Tornado1999-07-09: Tornado2001-04-09: Tornado2014-07-08: Tornado2022-09-04: Tornado2003-07-22: Flood2004-05-22: Flood2007-08-20: Flood2011-02-28: Flood2011-05-14: Flood2011-05-12: Flood2015-06-23: Flood2018-08-10: Flood2019-05-28: Flood2020-06-04: Flood2021-07-16: Flood2022-09-04: Flood2022-02-17: Flood2026-06-14: Wind2026-04-15: Wind2025-06-18: Wind2024-08-06: Wind2024-08-06: Wind2024-08-06: Wind2024-08-06: Wind2024-08-06: Wind2024-08-06: Wind2024-08-06: Wind2024-07-24: Wind2024-07-24: Wind2024-06-17: Wind2024-05-25: Wind2024-05-25: Wind2024-05-25: Wind2023-08-24: Wind2023-08-12: Wind2023-08-12: Wind2023-07-20: Wind2023-04-01: Wind2023-04-01: Wind2023-03-25: Wind2023-03-25: Wind2023-03-25: Wind2022-08-29: Wind2022-05-21: Wind2021-08-12: Wind2021-08-07: Wind2021-07-20: Wind2021-07-20: Wind2021-07-08: Wind2021-07-07: Wind2021-06-07: Wind2020-08-27: Wind2020-07-19: Wind2020-06-10: Wind2020-06-10: Wind2020-04-07: Wind2020-04-07: Wind2019-08-18: Wind2019-07-11: Wind2019-07-11: Wind2019-07-11: Wind2019-07-11: Wind2019-06-29: Wind2019-06-27: Wind2019-06-27: Wind2019-05-28: Wind2019-05-28: Wind2019-04-14: Wind2019-04-14: Wind2019-04-14: Wind2019-04-14: Wind2018-09-21: Wind2018-09-21: Wind2018-09-21: Wind2018-05-04: Wind2018-05-04: Wind2018-05-04: Wind2018-05-04: Wind2018-04-27: Wind2018-04-27: Wind2017-11-05: Wind2017-11-05: Wind2017-05-01: Wind2017-05-01: Wind2017-05-01: Wind2017-04-30: Wind2016-09-10: Wind2016-07-24: Wind2016-07-18: Wind2016-07-13: Wind2016-07-06: Wind2015-08-10: Wind2015-06-14: Wind2015-06-12: Wind2015-06-11: Wind2015-05-11: Wind2015-05-11: Wind2014-07-14: Wind2014-06-11: Wind2014-05-14: Wind2014-05-14: Wind2013-12-22: Wind2013-11-17: Wind2013-07-23: Wind2013-07-10: Wind2013-06-25: Wind2013-06-25: Wind2013-06-25: Wind2013-06-25: Wind2013-06-13: Wind2013-06-13: Wind2012-08-08: Wind2012-07-26: Wind2012-07-18: Wind2012-07-04: Wind2012-07-04: Wind2012-05-29: Wind2012-05-29: Wind2012-01-17: Wind2011-07-22: Wind2011-06-07: Wind2011-05-13: Wind2011-05-12: Wind2011-04-20: Wind2010-09-16: Wind2010-07-24: Wind2010-07-23: Wind
Mahoning County within Ohio. 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.

The NCEI record lists 552 events for Mahoning County, Ohio, between 1950 and 2026; damaging wind account for the largest share.

That is 134.1 events per 100 square miles, in line with the Ohio figure of 126.7, and 24.3 per 10,000 residents against 44.0 statewide.

6 events fall in the 12 months to 30 Jun 2026. NCEI attributes 7 deaths and 39 injuries to events in the county, with property damage estimated at $73M and crop damage at $1.3M.

FEMA has designated the county in 12 federal disaster declarations since 1953; the most recent is Covid-19 Pandemic (major disaster, 31 Mar 2020).

National Flood Insurance Program policyholders in the county filed 305 claims since 1978, of which 234 were paid, totalling $2.8M (about $12K per paid claim). FEMA counts 143 residential flood policies in force.

FEMA's National Risk Index rates the county's overall risk as "Relatively Moderate" and its expected annual loss as "Relatively Low" ($43M a year across 18 hazards).

9 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.

6events, last 12 monthsto 30 Jun 2026
552events since 19507 deaths, 39 injuries recorded
12disaster declarationslast 31 Mar 2020
305NFIP flood claims$2.8M paid

Compared with Ohio and the United States

MeasureMahoning CountyOhioUS
Recorded events since 195055251,7771,977,440
Events per 100 square miles134.1126.756.0
Events per 10,000 residents24.344.059.6
Events in the last 12 months61,44262,008
Deaths recorded by NCEI746026,435
Property damage (NCEI estimates)$73M$8.4B$575B
NFIP claims per 1,000 residents1.32.48.1
Average paid NFIP claim$12K$17K$43K
Claims per 100 policies in force, last 10 years33.616.216.1

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

Tornado: 3
Tornado: 1Wind: 2
Hail: 1Tornado: 1Wind: 7
Hail: 11Tornado: 2Wind: 29
Hail: 15Tornado: 6Flood: 11Wind: 59Winter: 6Heat: 2Cold: 2Drought: 6Lightning: 2Other: 2
Hail: 58Tornado: 2Flood: 16Wind: 90Winter: 18Cold: 1Lightning: 1
Hail: 25Tornado: 1Flood: 6Wind: 79Winter: 12Cold: 5
Hail: 16Tornado: 1Flood: 4Wind: 43Winter: 5Cold: 1
31950s31960s91970s421980s1111990s1862000s1282010s702020s
Recorded events in Mahoning County by decade and hazard group. HailTornadoFloodWindWinterHeatColdDroughtLightningOther NCEI recorded only tornadoes, hail and thunderstorm wind before 1996.

Trend: 265 events in the 20 years to 2025 against 241 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

Wind309
Hail126
Winter41
Flood37
Tornado17
Cold9
Drought6
Lightning3
Heat2
Other2
HazardEventsDeathsShare of state's events
■ Wind30921.3%detail
■ Hail126—1.4%detail
■ Winter41—0.5%detail
■ Flood37—0.5%detail
■ Tornado1731.1%detail
■ Cold9—1.0%
■ Drought6—1.4%
■ Lightning321.2%
■ Heat2—0.5%
■ Other2—0.6%

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
5 Aug 1956TornadoTornadoF3$250K—2—County
18 Jun 1984Thunderstorm WindWind58 mph——18County
1 Mar 1955TornadoTornadoF3$250K—16County
12 Jun 1996LightningLightning———13County
14 Sep 2008High WindWind60 mph$3.0M—1—Forecast zone
8 Jun 2007LightningLightning———1—County
22 Jun 1981TornadoTornadoF1$2.5M——6County
13 Oct 1999Thunderstorm WindWind—$60K——6County
11 Nov 2019Winter WeatherWinter—$500K——3Forecast zone
22 Mar 1955TornadoTornadoF1———3County
2 Jan 1999Winter StormWinter—$15K——2Forecast zone
30 Oct 1996High WindWind58 mph$75K$100K—1Forecast zone
9 Jul 1999Thunderstorm WindWind—$75K——1County
21 Jul 2003FloodFlood—$10M———Forecast zone
27 Jul 2003Flash FloodFlood—$8.0M———County
25 Sep 1994HailHail1.75 in$5.0M$50K——County
4 Sep 2022Flash FloodFlood—$4.5M———County
28 May 2019Flash FloodFlood—$3.0M———County
22 Dec 2004Winter StormWinter—$2.2M———Forecast zone
23 Jun 2015Flash FloodFlood—$2.2M———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
31 Mar 2020DR-4507Major disasterBiologicalCovid-19 PandemicIndividual assistance, Public assistance
13 Mar 2020EM-3457EmergencyBiologicalCovid-19Public assistance
18 Jun 2019DR-4447Major disasterTornadoSevere Storms, Straight-Line Winds, Tornadoes, Flooding, Landslides, And MudslideIndividual assistance
30 Jun 2012EM-3346EmergencySevere StormSevere StormsPublic assistance
13 Sep 2005EM-3250EmergencyHurricaneHurricane Katrina EvacuationPublic assistance
19 Sep 2004DR-1556Major disasterSevere StormSevere Storms And FloodingIndividual assistance
3 Jun 2004DR-1519Major disasterSevere StormSevere Storms And FloodingIndividual assistance
1 Aug 2003DR-1484Major disasterTornadoTornadoes, Flooding, Severe Storms, And High WindsIndividual assistance, Public assistance
15 Jul 2003DR-1478Major disasterSevere StormSevere Storms And FloodingIndividual assistance
4 Aug 1992DR-951Major disasterSevere StormSevere Storms, Tornadoes & FloodingIndividual assistance, Public assistance
6 Jun 1990DR-870Major disasterSevere StormSevere Storms, Tornadoes & FloodingIndividual assistance
26 Jan 1978EM-3055EmergencySnowstormBlizzards & SnowstormsPublic 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 Mahoning County, 1978 to 2026 (hover for the amount paid).
Claims since 1978305
Paid claims234
Total paid$2.8M
Average paid claim$12K
Repetitive-loss properties254 severe
Residential policies in force1430.2% of 92,416 structures
Year of lossClaimsPaid claimsAmount paidAverage paid
202695$42,083$8,417
202511$7,999$7,999
202410$0—
20221311$140,633$12,785
202110$0—
202010$0—
2019149$311,736$34,637
201887$89,317$12,760
201522$6,662$3,331
201321$3,377$3,377
201210$0—
201153$504,492$168,164
200933$17,948$5,983
200810$0—
200711$226$226
200652$27,218$13,609
200540$0—
20041411$247,824$22,529
20032118$566,527$31,474
200131$2,874$2,874
199910$0—
199611$2,618$2,618
19941411$17,826$1,621
19932114$114,182$8,156
19922219$149,752$7,882

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 Moderatescore 83.6 of 100
Expected annual loss$43MRelatively Low
Social vulnerabilityRelatively High
Community resilienceVery High
Hazard (NRI)Risk ratingExpected annual loss
Inland floodingRelatively Moderate$26,959,331
TornadoRelatively High$6,501,567
HailRelatively High$2,343,478
Strong windRelatively High$2,074,990
Heat waveRelatively Low$1,148,119
LightningRelatively High$1,140,651
EarthquakeRelatively Low$821,833
Ice stormRelatively High$455,132
HurricaneRelatively Low$433,016
Cold waveRelatively Low$375,437
Winter weatherRelatively High$242,540
WildfireVery Low$36,417
LandslideVery Low$215

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 miles9
Tracks within 50 miles2
Hurricane strength within 50 miles0
StormYearClosest approachMax wind while within 100 mi
Sandy201225 mi40 mph
Isabel200326 mi40 mph
Opal199570 mi46 mph
Hugo198987 mi40 mph
Connie195598 mi52 mph
Unnamed Atlantic storm192898 mi40 mph
Unnamed Atlantic storm191576 mi40 mph
Unnamed Atlantic storm190272 mi40 mph
Unnamed Atlantic storm187898 mi46 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 Mahoning County, OH?

NCEI records 126 hail events in Mahoning County since 1950, in 35 different years; that is about 1.6 recorded events a year. 8 reports were golf-ball size (1.75 in) or larger.

Has Mahoning County had a tornado?

Yes. NCEI records 17 tornadoes in Mahoning County since 1950, 6 of them rated (E)F2 or stronger. Tornado deaths recorded: 3.

When was the last federal disaster declaration for Mahoning County?

31 Mar 2020: Covid-19 Pandemic, a major disaster declaration for biological. The county appears in 12 declarations since 1953.

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

305 NFIP claims since 1978, 234 of them paid, for $2.8M in total. FEMA publishes these figures redacted and aggregated; individual properties are not identified.

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

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

How does Mahoning County compare with the rest of Ohio?

134.1 recorded events per 100 square miles against 126.7 statewide, and 1.3 NFIP claims per 1,000 residents against 2.4. 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.