County Hazards

States › South Carolina › Calhoun County

Calhoun County, South Carolina

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

FIPS 45017 · 14,165 residents (2021) · 381 sq mi · dominant hazard Wind

Hail · 83Tornado · 28Flood · 10Wind · 210Winter · 18
1974-04-04: Hail1985-08-21: Hail1985-06-07: Hail1987-05-01: Hail1987-05-02: Hail1987-05-02: Hail1988-06-08: Hail1988-05-17: Hail1988-06-26: Hail1989-06-02: Hail1991-03-13: Hail1991-03-13: Hail1992-03-19: Hail1996-05-07: Hail1997-07-16: Hail1997-07-05: Hail1997-06-21: Hail1997-06-03: Hail1997-01-24: Hail1997-04-22: Hail1998-06-14: Hail1998-06-14: Hail1998-04-08: Hail1998-06-29: Hail1999-02-19: Hail1999-04-27: Hail1999-06-16: Hail2002-07-06: Hail2003-03-20: Hail2003-05-06: Hail2003-04-21: Hail2003-07-17: Hail2004-07-09: Hail2005-05-20: Hail2005-05-20: Hail2006-04-26: Hail2006-05-20: Hail2006-06-21: Hail2006-06-20: Hail2007-06-05: Hail2007-06-13: Hail2007-07-27: Hail2007-07-27: Hail2007-08-17: Hail2007-08-17: Hail2007-08-17: Hail2007-06-12: Hail2007-06-30: Hail2008-05-20: Hail2008-06-26: Hail2008-06-10: Hail2008-06-19: Hail2008-03-15: Hail2009-07-24: Hail2009-05-08: Hail2009-06-12: Hail2009-06-01: Hail2010-10-14: Hail2010-07-31: Hail2010-05-22: Hail2010-05-22: Hail2011-07-06: Hail2011-05-13: Hail2012-05-15: Hail2012-05-15: Hail2012-05-15: Hail2015-06-17: Hail2017-04-24: Hail2018-09-27: Hail2018-06-11: Hail2020-05-22: Hail2020-05-22: Hail2022-05-23: Hail2022-05-23: Hail2023-04-26: Hail2023-04-26: Hail2023-04-26: Hail2023-04-26: Hail2023-03-26: Hail2023-06-07: Hail2024-05-10: Hail1958-04-22: Tornado1971-02-22: Tornado1974-03-21: Tornado1990-10-22: Tornado1994-06-06: Tornado2004-09-07: Tornado2004-09-07: Tornado2004-12-10: Tornado2008-03-15: Tornado2008-11-14: Tornado2011-04-28: Tornado2012-06-11: Tornado2015-04-19: Tornado2017-04-03: Tornado2018-05-28: Tornado2019-04-19: Tornado2020-04-13: Tornado2020-04-13: Tornado2020-09-17: Tornado2020-09-17: Tornado2020-09-17: Tornado2022-04-05: Tornado2023-01-04: Tornado2024-09-27: Tornado2024-09-26: Tornado2024-09-27: Tornado2013-05-06: Flood2015-10-04: Flood2015-10-03: Flood2016-10-08: Flood2016-06-05: Flood2016-10-08: Flood2024-11-06: Flood2024-11-06: Flood2025-06-25: Wind2025-06-25: Wind2025-05-30: Wind2025-05-30: Wind2024-07-16: Wind2024-07-16: Wind2024-07-16: Wind2024-07-15: Wind2024-06-05: Wind2024-05-10: Wind2023-08-26: Wind2023-08-07: Wind2022-07-24: Wind2022-07-24: Wind2022-06-23: Wind2022-06-23: Wind2022-06-16: Wind2022-05-23: Wind2022-05-21: Wind2022-05-21: Wind2021-07-31: Wind2021-06-15: Wind2021-06-14: Wind2021-06-14: Wind2021-06-14: Wind2021-03-28: Wind2020-06-23: Wind2020-01-11: Wind2019-09-27: Wind2019-07-18: Wind2019-07-18: Wind2019-06-22: Wind2018-09-27: Wind2018-06-25: Wind2018-06-25: Wind2018-06-25: Wind2018-06-25: Wind2018-06-24: Wind2018-06-15: Wind2018-06-15: Wind2018-06-14: Wind2018-06-11: Wind2018-04-15: Wind2017-07-23: Wind2017-05-29: Wind2017-05-29: Wind2017-05-29: Wind2017-05-29: Wind2016-08-01: Wind2016-07-14: Wind2016-07-14: Wind2016-07-06: Wind2016-06-14: Wind2016-05-12: Wind2015-08-06: Wind2015-08-06: Wind2015-06-27: Wind2015-06-27: Wind2015-06-27: Wind2015-06-27: Wind2015-06-18: Wind2015-06-18: Wind2015-06-18: Wind2015-06-18: Wind2015-06-18: Wind2015-06-17: Wind2015-04-19: Wind2013-06-10: Wind2013-03-18: Wind2013-01-30: Wind2012-08-02: Wind2012-07-10: Wind2012-07-01: Wind2012-06-13: Wind2012-06-13: Wind2012-05-29: Wind2012-05-29: Wind2012-02-24: Wind2011-11-16: Wind2011-08-29: Wind2011-08-29: Wind2011-08-20: Wind2011-08-20: Wind2011-08-09: Wind2011-07-05: Wind2011-06-21: Wind2011-06-21: Wind2011-06-15: Wind2011-06-15: Wind2011-06-15: Wind2011-06-15: Wind2011-06-02: Wind2011-06-02: Wind2011-06-02: Wind2011-04-28: Wind2011-04-05: Wind2010-11-17: Wind2010-08-06: Wind2010-07-31: Wind2010-07-31: Wind2010-07-26: Wind2010-07-12: Wind2010-06-29: Wind2009-08-12: Wind2009-08-05: Wind2009-08-05: Wind2009-07-27: Wind2009-07-24: Wind2009-07-16: Wind2009-06-12: Wind2009-06-11: Wind2009-06-10: Wind2009-06-01: Wind2009-04-10: Wind
Calhoun County within South Carolina. 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 29 Sep 2026; NFIP claims as of 8 Sep 2026.

The NCEI record lists 355 events for Calhoun County, South Carolina, between 1950 and 2026; damaging wind account for the largest share.

That is 93.1 events per 100 square miles, in line with the South Carolina figure of 108.7, and 250.6 per 10,000 residents against 62.9 statewide.

2 events fall in the 12 months to 30 Jun 2026. NCEI attributes 1 death and 9 injuries to events in the county, with property damage estimated at $10M and crop damage at $7.5M.

FEMA has designated the county in 30 federal disaster declarations since 1953; the most recent is Severe Winter Storm (emergency, 23 Jan 2026).

National Flood Insurance Program policyholders in the county filed 5 claims since 1978, of which 3 were paid, totalling $10K (about $3K per paid claim). FEMA counts 13 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" ($6.1M a year across 18 hazards).

87 tropical storm or hurricane tracks in the HURDAT2 record passed within 100 miles of the county's centre at tropical-storm strength or more, 3 of them within 50 miles at hurricane strength.

2events, last 12 monthsto 30 Jun 2026
355events since 19501 death, 9 injuries recorded
30disaster declarationslast 23 Jan 2026
5NFIP flood claims$10K paid

Compared with South Carolina and the United States

MeasureCalhoun CountySouth CarolinaUS
Recorded events since 195035532,6701,977,440
Events per 100 square miles93.1108.756.0
Events per 10,000 residents250.662.959.6
Events in the last 12 months267762,008
Deaths recorded by NCEI128826,435
Property damage (NCEI estimates)$10M$1.9B$575B
NFIP claims per 1,000 residents0.49.68.1
Average paid NFIP claim$3K$30K$43K
Claims per 100 policies in force, last 10 years7.76.916.1

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: 1Wind: 1
Wind: 1
Hail: 1Tornado: 2Wind: 3
Hail: 9Wind: 10
Hail: 19Tornado: 4Wind: 32
Hail: 30Tornado: 5Flood: 2Wind: 56Winter: 5Lightning: 1
Hail: 13Tornado: 6Flood: 6Wind: 76Winter: 7Tropical: 1Other: 1
Hail: 11Tornado: 10Flood: 2Wind: 31Winter: 6Tropical: 3
21950s11960s61970s191980s551990s992000s1102010s632020s
Recorded events in Calhoun County by decade and hazard group. HailTornadoFloodWindWinterTropicalLightningOther NCEI recorded only tornadoes, hail and thunderstorm wind before 1996.

Trend: 230 events in the 20 years to 2025 against 108 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

Wind210
Hail83
Tornado28
Winter18
Flood10
Tropical4
Lightning1
Other1
HazardEventsDeathsShare of state's events
■ Wind210—1.2%detail
■ Hail83—1.2%detail
■ Tornado2812.1%detail
■ Winter18—1.0%detail
■ Flood10—0.4%detail
■ Tropical4—0.7%
■ Lightning1—0.2%
■ Other1—0.3%

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
22 Oct 1990TornadoTornadoF2$250K—14County
19 Apr 2015TornadoTornadoEF1$200K——2County
21 Mar 1974TornadoTornadoF1$250K——1County
4 Jul 2003LightningLightning————1County
10 Dec 2004TornadoTornadoF2———1County
3 Oct 2015Flash FloodFlood—$5.0M$5.0M——County
27 Sep 2024Tropical StormTropical—$1.2M$1.7M——Forecast zone
8 Oct 2016High WindWind64 mph$950K$500K——Forecast zone
4 Oct 2015Flash FloodFlood—$500K$250K——County
14 Nov 2008TornadoTornadoEF1$500K$20K——County
7 Nov 1995TornadoTornadoF2$400K———County
28 Apr 2011TornadoTornadoEF1$250K$12K——County
22 Apr 1997Thunderstorm WindWind86 mph$250K———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
23 Jan 2026EM-3632EmergencyWinter StormSevere Winter StormPublic assistance
10 Jan 2025DR-4858Major disasterFloodSevere Storms And FloodingPublic assistance
29 Sep 2024DR-4829Major disasterHurricaneHurricane HelenePublic assistance
26 Sep 2024EM-3619EmergencyTropical StormHurricane HelenePublic assistance
5 Aug 2024EM-3606EmergencyTropical StormHurricane DebbyPublic assistance
31 Aug 2023EM-3597EmergencyHurricaneHurricane IdaliaPublic assistance
21 Nov 2022DR-4677Major disasterHurricaneHurricane IanPublic assistance
29 Sep 2022EM-3585EmergencyHurricaneHurricane IanPublic assistance
27 Mar 2020DR-4492Major disasterBiologicalCovid-19 PandemicIndividual assistance, Public assistance
13 Mar 2020EM-3470EmergencyBiologicalCovid-19Public assistance
1 Sep 2019EM-3421EmergencyHurricaneHurricane DorianPublic assistance
16 Sep 2018DR-4394Major disasterHurricaneHurricane FlorencePublic assistance
10 Sep 2018EM-3400EmergencyHurricaneHurricane FlorencePublic assistance
16 Oct 2017DR-4346Major disasterHurricaneHurricane IrmaPublic assistance
7 Sep 2017EM-3386EmergencyHurricaneHurricane IrmaPublic assistance
11 Oct 2016DR-4286Major disasterHurricaneHurricane MatthewIndividual assistance, Public assistance
6 Oct 2016EM-3378EmergencyHurricaneHurricane MatthewPublic assistance
5 Oct 2015DR-4241Major disasterFloodSevere Storms And FloodingIndividual assistance, Public assistance
3 Oct 2015EM-3373EmergencySevere StormSevere Storms And FloodingPublic assistance
12 Mar 2014DR-4166Major disasterSevere Ice StormSevere Winter StormPublic assistance
12 Feb 2014EM-3369EmergencySevere Ice StormSevere Winter StormPublic assistance
10 Sep 2005EM-3233EmergencyHurricaneHurricane Katrina EvacuationPublic assistance
7 Oct 2004DR-1566Major disasterHurricaneTropical Storm FrancesIndividual assistance
13 Feb 2004DR-1509Major disasterSevere Ice StormSevere Ice StormPublic assistance
31 Jan 2000DR-1313Major disasterSevere StormSevere Winter StormPublic assistance
21 Sep 1999DR-1299Major disasterHurricaneHurricane Floyd Major Disaster DeclarationsPublic assistance
15 Sep 1999EM-3145EmergencyHurricaneHurricane Floyd Emergency DeclarationsPublic assistance
22 Oct 1990DR-881Major disasterFloodSevere Storms & FloodingIndividual assistance, Public assistance
22 Sep 1989DR-843Major disasterHurricaneHurricane HugoIndividual assistance, Public assistance
4 Aug 1977EM-3047EmergencyDroughtDroughtPublic 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 Calhoun County, 1978 to 2026 (hover for the amount paid).
Claims since 19785
Paid claims3
Total paid$10K
Average paid claim$3K
Repetitive-loss properties0
Residential policies in force130.2% of 5,316 structures
Year of lossClaimsPaid claimsAmount paidAverage paid
201710$0—
201510$0—
198911$6,367$6,367
197911$2,588$2,588
197811$608$608

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 22.6 of 100
Expected annual loss$6.1MVery Low
Social vulnerabilityRelatively High
Community resilienceRelatively Low
Hazard (NRI)Risk ratingExpected annual loss
Inland floodingVery Low$1,811,539
HurricaneRelatively Low$1,690,677
EarthquakeRelatively Low$728,098
TornadoRelatively Low$598,800
Strong windRelatively Low$340,204
DroughtRelatively Low$217,109
Cold waveVery Low$206,784
Heat waveRelatively Low$192,260
Ice stormRelatively Low$96,528
HailVery Low$83,857
LightningRelatively Low$72,129
WildfireVery Low$40,282
Winter weatherVery Low$9,888
LandslideVery Low$311

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 miles87
Tracks within 50 miles34
Hurricane strength within 50 miles3
StormYearClosest approachMax wind while within 100 mi
Chantal202598 mi40 mph
Debby202445 mi46 mph
Idalia202368 mi58 mph
Colin202269 mi40 mph
Ian202295 mi81 mph
Danny202196 mi40 mph
Elsa202140 mi46 mph
Bertha202082 mi52 mph
Nestor201966 mi46 mph
Florence20185 mi63 mph
Michael201860 mi52 mph
Hermine201691 mi58 mph
Matthew201687 mi92 mph
Andrea201336 mi46 mph
Beryl201275 mi40 mph
Barry200775 mi46 mph
Alberto200643 mi40 mph
Charley200492 mi81 mph
Gaston200469 mi75 mph
Kyle200287 mi40 mph
Earl199837 mi46 mph
Allison199545 mi40 mph
Hugo198930 mi138 mph
Chris198863 mi40 mph
Bob198554 mi63 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.

Questions and answers

How often does it hail in Calhoun County, SC?

NCEI records 83 hail events in Calhoun County since 1950, in 30 different years; that is about 1.1 recorded events a year. 15 reports were golf-ball size (1.75 in) or larger.

Has Calhoun County had a tornado?

Yes. NCEI records 28 tornadoes in Calhoun County since 1950, 6 of them rated (E)F2 or stronger. Tornado deaths recorded: 1.

When was the last federal disaster declaration for Calhoun County?

23 Jan 2026: Severe Winter Storm, a emergency declaration for winter storm. The county appears in 30 declarations since 1953.

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

5 NFIP claims since 1978, 3 of them paid, for $10K in total. FEMA publishes these figures redacted and aggregated; individual properties are not identified.

Is Calhoun 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 High" for social vulnerability and "Relatively Low" for community resilience. These ratings are FEMA's relative comparison across all US counties.

How does Calhoun County compare with the rest of South Carolina?

93.1 recorded events per 100 square miles against 108.7 statewide, and 0.4 NFIP claims per 1,000 residents against 9.6. 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 29 Sep 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 30 Sep 2026; see the methodology and corrections pages. Hazard hubs: Hail · Tornado · Flood · Wind · Winter.