County Hazards

States › Ohio › Clinton County

Clinton 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 39027 · 42,004 residents (2021) · 409 sq mi · dominant hazard Wind

Hail · 118Tornado · 32Flood · 74Wind · 351Winter · 152
1957-05-18: Hail1977-07-16: Hail1982-05-29: Hail1982-03-16: Hail1986-05-05: Hail1996-05-01: Hail1996-05-24: Hail1996-05-01: Hail1996-06-03: Hail1997-07-14: Hail1997-05-14: Hail1998-06-16: Hail1998-05-13: Hail1998-05-13: Hail1998-05-13: Hail1998-05-13: Hail1999-04-10: Hail2000-05-10: Hail2001-04-09: Hail2001-05-25: Hail2002-02-20: Hail2002-02-20: Hail2002-04-19: Hail2002-04-19: Hail2002-04-19: Hail2002-04-19: Hail2002-09-18: Hail2003-04-05: Hail2003-03-20: Hail2003-05-15: Hail2004-05-21: Hail2004-05-17: Hail2005-05-13: Hail2006-04-07: Hail2006-04-07: Hail2007-11-05: Hail2007-07-13: Hail2007-04-11: Hail2008-04-11: Hail2009-06-02: Hail2009-06-02: Hail2009-06-02: Hail2009-06-02: Hail2009-05-30: Hail2009-05-30: Hail2009-05-30: Hail2009-05-30: Hail2009-05-30: Hail2010-04-05: Hail2010-04-05: Hail2010-04-05: Hail2010-04-05: Hail2010-04-05: Hail2011-05-11: Hail2011-03-23: Hail2011-03-23: Hail2011-03-23: Hail2011-03-23: Hail2011-07-11: Hail2012-05-01: Hail2012-07-05: Hail2012-07-05: Hail2012-08-09: Hail2012-05-01: Hail2012-03-15: Hail2013-08-21: Hail2014-07-07: Hail2014-07-07: Hail2014-07-07: Hail2014-05-21: Hail2014-05-21: Hail2014-05-21: Hail2014-05-21: Hail2014-05-21: Hail2015-06-26: Hail2015-06-26: Hail2015-06-29: Hail2015-06-29: Hail2015-06-29: Hail2016-04-26: Hail2016-04-26: Hail2016-04-26: Hail2016-04-28: Hail2017-03-01: Hail2017-03-01: Hail2017-04-16: Hail2017-06-05: Hail2018-01-22: Hail2019-03-14: Hail2019-03-14: Hail2019-09-01: Hail2020-07-12: Hail2020-08-25: Hail2023-07-17: Hail2023-07-17: Hail2023-07-18: Hail2023-07-18: Hail2023-07-24: Hail2024-07-15: Hail2025-05-16: Hail2025-05-16: Hail2025-05-16: Hail2025-05-16: Hail2025-05-16: Hail2025-05-16: Hail2025-05-16: Hail2025-05-16: Hail2025-05-16: Hail1961-04-25: Tornado1968-04-23: Tornado1969-05-10: Tornado1970-05-12: Tornado1976-06-24: Tornado1986-03-10: Tornado1990-06-02: Tornado1990-09-14: Tornado1997-05-14: Tornado1998-05-31: Tornado2001-05-24: Tornado2002-05-09: Tornado2006-07-11: Tornado2006-07-11: Tornado2006-07-11: Tornado2006-07-11: Tornado2008-05-08: Tornado2008-06-03: Tornado2009-05-30: Tornado2009-05-30: Tornado2009-10-23: Tornado2010-10-26: Tornado2011-06-27: Tornado2012-03-23: Tornado2020-04-08: Tornado2022-03-23: Tornado2024-05-07: Tornado2024-07-30: Tornado2025-04-03: Tornado2025-04-03: Tornado2025-04-03: Tornado2006-03-12: Flood2008-03-19: Flood2008-03-18: Flood2008-06-03: Flood2010-06-27: Flood2013-07-10: Flood2013-07-10: Flood2013-12-22: Flood2015-06-26: Flood2015-07-18: Flood2016-07-29: Flood2017-03-01: Flood2017-04-29: Flood2017-06-23: Flood2017-06-23: Flood2018-06-19: Flood2018-06-19: Flood2018-06-19: Flood2019-04-20: Flood2019-06-27: Flood2019-06-27: Flood2019-06-27: Flood2019-06-27: Flood2019-06-27: Flood2019-06-19: Flood2019-06-27: Flood2021-07-29: Flood2021-06-18: Flood2022-02-18: Flood2022-05-06: Flood2022-05-06: Flood2022-05-06: Flood2022-09-05: Flood2025-02-16: Flood2025-06-26: Flood2025-06-28: Flood2025-06-28: Flood2025-06-28: Flood2025-06-28: Flood2025-06-26: Flood2025-07-14: Flood2025-07-14: Flood2026-03-05: Flood2026-03-05: Flood2026-03-11: Flood2026-02-19: Wind2025-12-28: Wind2025-09-21: Wind2025-06-24: Wind2025-06-18: Wind2025-05-16: Wind2025-05-16: Wind2025-05-16: Wind2025-05-16: Wind2025-05-16: Wind2025-05-16: Wind2025-04-03: Wind2025-04-03: Wind2025-03-30: Wind2025-03-30: Wind2025-03-30: Wind2025-03-30: Wind2025-03-30: Wind2025-03-30: Wind2025-03-30: Wind2025-03-30: Wind2025-03-30: Wind2025-03-30: Wind2025-03-30: Wind2025-03-30: Wind2024-07-30: Wind2024-07-30: Wind2024-07-30: Wind2024-07-14: Wind2024-07-14: Wind2024-06-17: Wind2024-06-17: Wind2024-06-04: Wind2024-06-04: Wind2024-05-26: Wind2023-08-24: Wind2023-07-20: Wind2023-07-20: Wind2023-07-20: Wind2023-07-20: Wind2023-07-18: Wind2023-07-17: Wind2023-04-16: Wind2023-04-01: Wind2023-03-25: Wind2022-09-06: Wind2022-09-06: Wind2022-06-22: Wind2022-06-22: Wind2022-06-13: Wind2022-06-13: Wind2022-06-06: Wind2022-06-06: Wind2022-06-06: Wind2022-06-06: Wind2022-05-25: Wind2022-05-25: Wind2022-05-03: Wind2021-08-13: Wind2021-07-29: Wind2021-07-16: Wind2021-07-16: Wind2021-06-18: Wind2021-06-18: Wind2021-06-18: Wind2021-06-18: Wind2021-06-18: Wind2021-06-18: Wind2021-06-18: Wind2021-06-18: Wind2021-06-18: Wind2021-06-18: Wind2021-06-18: Wind2021-06-18: Wind2020-11-15: Wind2020-11-15: Wind2020-08-25: Wind2020-08-25: Wind2020-08-25: Wind2020-08-25: Wind2020-08-25: Wind2020-08-25: Wind2020-08-25: Wind2020-07-19: Wind2020-07-12: Wind2020-07-12: Wind2020-07-12: Wind2020-07-12: Wind2020-07-12: Wind2020-07-12: Wind2020-06-10: Wind2020-06-10: Wind2020-06-10: Wind2020-06-10: Wind2020-06-03: Wind2020-06-03: Wind2020-05-10: Wind2020-04-08: Wind2020-04-08: Wind2020-03-20: Wind2019-09-01: Wind2019-08-06: Wind2019-08-06: Wind2019-08-06: Wind2019-07-15: Wind2019-07-02: Wind2019-07-02: Wind2019-06-27: Wind
Clinton 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 745 events for Clinton County, Ohio, between 1950 and 2026; damaging wind account for the largest share.

That is 182.3 events per 100 square miles, above the Ohio figure of 126.7, and 177.4 per 10,000 residents against 44.0 statewide.

18 events fall in the 12 months to 30 Jun 2026. NCEI attributes 3 deaths and 20 injuries to events in the county, with property damage estimated at $18M and crop damage at $577K.

FEMA has designated the county in 10 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 16 claims since 1978, of which 15 were paid, totalling $206K (about $14K per paid claim). FEMA counts 68 residential flood policies in force.

FEMA's National Risk Index rates the county's overall risk as "Very Low" and its expected annual loss as "Very Low" ($12M 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.

18events, last 12 monthsto 30 Jun 2026
745events since 19503 deaths, 20 injuries recorded
10disaster declarationslast 31 Mar 2020
16NFIP flood claims$206K paid

Compared with Ohio and the United States

MeasureClinton CountyOhioUS
Recorded events since 195074551,7771,977,440
Events per 100 square miles182.3126.756.0
Events per 10,000 residents177.444.059.6
Events in the last 12 months181,44262,008
Deaths recorded by NCEI346026,435
Property damage (NCEI estimates)$18M$8.4B$575B
NFIP claims per 1,000 residents0.42.48.1
Average paid NFIP claim$14K$17K$43K
Claims per 100 policies in force, last 10 years13.216.216.1

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

Hail: 1Wind: 2
Tornado: 3Wind: 4
Hail: 1Tornado: 2Wind: 10
Hail: 3Tornado: 1Wind: 11
Hail: 21Tornado: 5Flood: 3Wind: 37Winter: 11Heat: 1Cold: 1Drought: 2Lightning: 2
Hail: 32Tornado: 11Flood: 30Wind: 61Winter: 22Heat: 1Cold: 1
Hail: 43Tornado: 3Flood: 22Wind: 116Winter: 81Heat: 4Cold: 1Other: 4
Hail: 17Tornado: 7Flood: 19Wind: 110Winter: 38Cold: 1
31950s71960s131970s151980s831990s1582000s2742010s1922020s
Recorded events in Clinton County by decade and hazard group. HailTornadoFloodWindWinterHeatColdDroughtLightningOther NCEI recorded only tornadoes, hail and thunderstorm wind before 1996.

Trend: 528 events in the 20 years to 2025 against 174 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

Wind351
Winter152
Hail118
Flood74
Tornado32
Heat6
Cold4
Other4
Drought2
Lightning2
HazardEventsDeathsShare of state's events
■ Wind351—1.4%detail
■ Winter152—2.0%detail
■ Hail118—1.3%detail
■ Flood7411.1%detail
■ Tornado3222.0%detail
■ Heat6—1.5%
■ Cold4—0.5%
■ Other4—1.1%
■ Drought2—0.5%
■ Lightning2—0.8%

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
25 Apr 1961TornadoTornadoF2$250K—24County
19 Mar 2008FloodFlood—$10K—1—County
10 Mar 1986TornadoTornadoF2$2.5M——10County
23 Apr 1968TornadoTornadoF4$2.5M——3County
14 Sep 1990TornadoTornadoF2$2.5M——2County
19 Jun 1994Thunderstorm WindWind0 mph$50K——1County
14 Sep 2008High WindWind77 mph$5.1M———Forecast zone
9 Apr 1999Thunderstorm WindWind115 mph$1.0M———County
6 Apr 2007Frost/FreezeCold——$540K——Forecast zone
15 Apr 1994Thunderstorm WindWind0 mph$500K———County
6 Jan 1996Winter StormWinter—$500K———Forecast zone
24 Jun 1976TornadoTornadoF0$250K———County
11 Jun 1996LightningLightning—$100K———County
2 Jul 1997Thunderstorm WindWind81 mph$100K———County
13 May 1998HailHail2.75 in$100K———County
19 Apr 2002Thunderstorm WindWind63 mph$100K———County
14 Mar 2019Thunderstorm WindWind69 mph$100K———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
30 Jun 2012EM-3346EmergencySevere StormSevere StormsPublic assistance
24 Oct 2008DR-1805Major disasterSevere StormSevere Wind Storm Associated With Tropical Depression IkePublic assistance
24 Apr 2008EM-3286EmergencySnowstormRecord Snow And Near Record SnowPublic assistance
13 Sep 2005EM-3250EmergencyHurricaneHurricane Katrina EvacuationPublic assistance
19 Sep 2004DR-1556Major disasterSevere StormSevere Storms And Flooding—
26 Jan 1978EM-3055EmergencySnowstormBlizzards & SnowstormsPublic assistance
2 Feb 1977EM-3029EmergencySnowstormSnowstormsPublic assistance
5 Jun 1968DR-243Major disasterFloodHeavy Rains & FloodingIndividual 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 Clinton County, 1978 to 2026 (hover for the amount paid).
Claims since 197816
Paid claims15
Total paid$206K
Average paid claim$14K
Repetitive-loss properties20 severe
Residential policies in force680.4% of 15,623 structures
Year of lossClaimsPaid claimsAmount paidAverage paid
202544$113,351$28,338
202233$36,015$12,005
201911$7,297$7,297
201711$18,146$18,146
201511$3,417$3,417
201211$13,179$13,179
200811$1,200$1,200
200511$9,777$9,777
200121$2,975$2,975
197911$697$697

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 riskVery Lowscore 34.0 of 100
Expected annual loss$12MVery Low
Social vulnerabilityRelatively Low
Community resilienceVery High
Hazard (NRI)Risk ratingExpected annual loss
Inland floodingRelatively Low$6,027,977
TornadoRelatively Low$1,588,147
Strong windRelatively Moderate$831,611
EarthquakeRelatively Low$660,507
Cold waveRelatively Low$656,079
Heat waveRelatively Low$607,186
DroughtRelatively Moderate$476,427
LightningRelatively Low$259,431
Ice stormRelatively Moderate$250,700
HailRelatively Low$167,506
Winter weatherRelatively Low$61,784
HurricaneVery Low$22,982
WildfireVery Low$3,052
LandslideVery Low$1,485

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
Opal199565 mi46 mph
Unnamed Atlantic storm191577 mi40 mph
Unnamed Atlantic storm189230 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 Clinton County, OH?

NCEI records 118 hail events in Clinton County since 1950, in 35 different years; that is about 1.5 recorded events a year. 16 reports were golf-ball size (1.75 in) or larger.

Has Clinton County had a tornado?

Yes. NCEI records 32 tornadoes in Clinton County since 1950, 5 of them rated (E)F2 or stronger. Tornado deaths recorded: 2.

When was the last federal disaster declaration for Clinton County?

31 Mar 2020: Covid-19 Pandemic, a major disaster declaration for biological. The county appears in 10 declarations since 1953.

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

16 NFIP claims since 1978, 15 of them paid, for $206K in total. FEMA publishes these figures redacted and aggregated; individual properties are not identified.

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

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

How does Clinton County compare with the rest of Ohio?

182.3 recorded events per 100 square miles against 126.7 statewide, and 0.4 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.