County Hazards

States › Indiana › Delaware County

Delaware County, Indiana

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

FIPS 18035 · 111,871 residents (2021) · 392 sq mi · dominant hazard Wind

Hail · 117Tornado · 25Flood · 76Wind · 261Winter · 48
1974-06-22: Hail1974-06-30: Hail1978-04-23: Hail1979-07-30: Hail1980-06-02: Hail1981-08-29: Hail1982-05-31: Hail1987-06-15: Hail1989-06-01: Hail1990-06-30: Hail1990-06-09: Hail1990-09-22: Hail1990-08-28: Hail1991-03-27: Hail1991-07-29: Hail1992-06-17: Hail1998-05-29: Hail1998-05-29: Hail1998-05-31: Hail1998-07-19: Hail1999-07-26: Hail2000-05-18: Hail2000-05-18: Hail2000-05-18: Hail2000-08-02: Hail2001-08-22: Hail2002-07-09: Hail2002-11-10: Hail2003-08-04: Hail2003-09-15: Hail2003-03-20: Hail2003-05-01: Hail2004-05-27: Hail2004-05-27: Hail2005-05-13: Hail2005-05-11: Hail2005-05-11: Hail2005-05-11: Hail2005-05-13: Hail2005-05-11: Hail2005-05-11: Hail2005-05-11: Hail2005-06-30: Hail2005-06-30: Hail2006-03-31: Hail2006-04-07: Hail2006-06-28: Hail2006-06-19: Hail2006-06-19: Hail2006-06-28: Hail2006-06-28: Hail2006-05-18: Hail2006-10-04: Hail2006-10-04: Hail2006-10-04: Hail2006-10-04: Hail2006-10-04: Hail2006-10-04: Hail2008-06-21: Hail2011-06-10: Hail2011-06-10: Hail2011-06-10: Hail2011-06-10: Hail2011-02-28: Hail2011-05-10: Hail2011-05-10: Hail2011-05-10: Hail2011-05-25: Hail2011-05-10: Hail2011-05-10: Hail2011-05-25: Hail2011-05-10: Hail2012-05-07: Hail2012-05-07: Hail2012-05-07: Hail2012-05-07: Hail2012-05-07: Hail2012-04-01: Hail2012-04-01: Hail2012-03-23: Hail2012-03-23: Hail2012-03-23: Hail2012-03-30: Hail2012-03-30: Hail2012-03-30: Hail2013-04-10: Hail2013-04-10: Hail2013-04-10: Hail2013-04-10: Hail2013-04-10: Hail2014-05-11: Hail2014-05-11: Hail2014-07-27: Hail2014-07-27: Hail2015-08-03: Hail2017-07-07: Hail2017-09-04: Hail2017-11-05: Hail2018-07-20: Hail2018-07-20: Hail2020-03-28: Hail2021-06-18: Hail2023-01-19: Hail2023-06-25: Hail2023-07-23: Hail2023-07-23: Hail2023-07-23: Hail2023-07-24: Hail2023-03-31: Hail2024-03-14: Hail2026-03-26: Hail2026-03-22: Hail2026-03-22: Hail2026-03-22: Hail1954-06-17: Tornado1957-04-05: Tornado1961-09-24: Tornado1961-05-24: Tornado1963-06-10: Tornado1963-05-27: Tornado1964-04-14: Tornado1965-11-26: Tornado1968-04-14: Tornado1973-06-26: Tornado1974-04-03: Tornado1989-06-03: Tornado1992-02-15: Tornado2002-09-20: Tornado2003-08-01: Tornado2003-05-01: Tornado2009-02-11: Tornado2010-06-06: Tornado2016-06-04: Tornado2017-11-05: Tornado2017-11-05: Tornado2024-03-14: Tornado2024-09-22: Tornado2025-04-02: Tornado2005-05-11: Flood2005-06-12: Flood2005-06-28: Flood2005-08-11: Flood2005-09-24: Flood2005-08-11: Flood2007-01-15: Flood2007-03-23: Flood2007-03-02: Flood2007-03-23: Flood2008-07-12: Flood2008-01-09: Flood2008-02-06: Flood2008-03-19: Flood2008-06-04: Flood2009-01-06: Flood2011-08-13: Flood2012-07-24: Flood2013-12-22: Flood2013-12-22: Flood2013-06-13: Flood2015-06-26: Flood2015-06-26: Flood2015-06-26: Flood2015-07-07: Flood2015-06-26: Flood2016-08-13: Flood2016-08-28: Flood2016-08-28: Flood2017-05-24: Flood2017-11-05: Flood2017-11-05: Flood2018-07-20: Flood2018-07-20: Flood2018-09-07: Flood2019-04-25: Flood2019-02-07: Flood2019-07-10: Flood2019-07-10: Flood2019-07-10: Flood2019-07-10: Flood2020-03-28: Flood2020-08-03: Flood2021-12-11: Flood2022-07-17: Flood2025-04-04: Flood2025-07-26: Flood2026-06-11: Wind2026-06-11: Wind2026-06-06: Wind2026-05-19: Wind2026-04-27: Wind2026-03-26: Wind2026-03-22: Wind2026-03-11: Wind2026-03-11: Wind2026-03-11: Wind2026-03-11: Wind2025-07-30: Wind2025-06-18: Wind2025-06-18: Wind2025-06-18: Wind2025-06-18: Wind2025-06-18: Wind2025-06-18: Wind2025-06-18: Wind2025-05-16: Wind2025-04-19: Wind2025-04-19: Wind2025-04-02: Wind2025-04-02: Wind2025-04-02: Wind2025-04-02: Wind2025-04-02: Wind2025-03-05: Wind2024-07-29: Wind2023-07-23: Wind2023-03-31: Wind2022-07-23: Wind2022-07-05: Wind2022-03-06: Wind2022-03-06: Wind2021-12-11: Wind2021-12-11: Wind2021-12-11: Wind2021-09-14: Wind2021-09-14: Wind2021-09-14: Wind2021-08-11: Wind2021-06-12: Wind2020-08-10: Wind2020-07-21: Wind2020-06-10: Wind2020-04-08: Wind2019-07-10: Wind2019-07-10: Wind2019-07-02: Wind2019-07-02: Wind2019-06-15: Wind2019-05-27: Wind2019-05-26: Wind2019-03-09: Wind2018-07-20: Wind2018-01-22: Wind2017-11-05: Wind2017-11-05: Wind2017-11-05: Wind2017-11-05: Wind2017-11-05: Wind2017-11-05: Wind2017-07-22: Wind2017-07-07: Wind2017-07-07: Wind2017-07-07: Wind2016-07-13: Wind2016-07-13: Wind2015-06-21: Wind2013-10-31: Wind2013-05-21: Wind2012-08-04: Wind2012-07-24: Wind2012-07-24: Wind2012-07-24: Wind2012-07-24: Wind2012-07-24: Wind2012-06-29: Wind2012-06-29: Wind2012-06-29: Wind2011-09-29: Wind2011-09-03: Wind2011-09-03: Wind2011-08-13: Wind2011-06-11: Wind2011-06-10: Wind2011-06-10: Wind2011-06-04: Wind2011-05-25: Wind2011-05-25: Wind2011-05-23: Wind2011-05-23: Wind2011-02-28: Wind2010-10-26: Wind2010-08-04: Wind2010-08-04: Wind2010-06-15: Wind2010-06-15: Wind2010-05-03: Wind2009-05-14: Wind2009-03-10: Wind2009-03-10: Wind
Delaware County within Indiana. 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 561 events for Delaware County, Indiana, between 1950 and 2026; damaging wind account for the largest share.

That is 143.1 events per 100 square miles, in line with the Indiana figure of 120.7, and 50.1 per 10,000 residents against 63.5 statewide.

31 events fall in the 12 months to 30 Jun 2026. NCEI attributes 2 deaths and 7 injuries to events in the county, with property damage estimated at $42M and crop damage at $30K.

FEMA has designated the county in 19 federal disaster declarations since 1953; the most recent is Severe Storms, Straight-Line Winds, Tornadoes, And Flooding (major disaster, 25 Aug 2026).

National Flood Insurance Program policyholders in the county filed 302 claims since 1978, of which 218 were paid, totalling $3.8M (about $17K per paid claim). FEMA counts 323 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" ($34M a year across 18 hazards).

5 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.

31events, last 12 monthsto 30 Jun 2026
561events since 19502 deaths, 7 injuries recorded
19disaster declarationslast 25 Aug 2026
302NFIP flood claims$3.8M paid

Compared with Indiana and the United States

MeasureDelaware CountyIndianaUS
Recorded events since 195056143,2291,977,440
Events per 100 square miles143.1120.756.0
Events per 10,000 residents50.163.559.6
Events in the last 12 months311,59762,008
Deaths recorded by NCEI255026,435
Property damage (NCEI estimates)$42M$4.5B$575B
NFIP claims per 1,000 residents2.72.98.1
Average paid NFIP claim$17K$20K$43K
Claims per 100 policies in force, last 10 years22.917.316.1

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

Tornado: 2Wind: 4
Tornado: 8Wind: 4
Hail: 4Tornado: 2Wind: 29
Hail: 5Tornado: 1Wind: 27
Hail: 12Tornado: 1Flood: 10Wind: 28Winter: 8Heat: 1Cold: 1Lightning: 1Fog: 1
Hail: 41Tornado: 4Flood: 35Wind: 54Winter: 17Lightning: 4
Hail: 41Tornado: 4Flood: 25Wind: 59Winter: 14Drought: 4Lightning: 2Other: 2
Hail: 14Tornado: 3Flood: 6Wind: 56Winter: 9Heat: 1Cold: 5Drought: 10Lightning: 2
61950s121960s351970s331980s631990s1552000s1512010s1062020s
Recorded events in Delaware County by decade and hazard group. HailTornadoFloodWindWinterHeatColdDroughtLightningFogOther NCEI recorded only tornadoes, hail and thunderstorm wind before 1996.

Trend: 296 events in the 20 years to 2025 against 173 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

Wind261
Hail117
Flood76
Winter48
Tornado25
Drought14
Lightning9
Cold6
Heat2
Other2
Fog1
HazardEventsDeathsShare of state's events
■ Wind261—1.4%detail
■ Hail117—1.5%detail
■ Flood76—1.2%detail
■ Winter48—0.8%detail
■ Tornado25—1.2%detail
■ Drought14—2.6%
■ Lightning922.3%
■ Cold6—0.6%
■ Heat2—0.3%
■ Other2—0.5%
■ Fog1—0.2%

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 Jun 2011LightningLightning—$150K—11County
22 Jul 1998LightningLightning———1—County
18 May 2000HailHail2.75 in$15M———County
24 Sep 1961TornadoTornadoF3$250K——1County
9 Jun 2008Thunderstorm WindWind60 mph$45K——1County
3 Sep 2011Thunderstorm WindWind64 mph$28K——1County
9 Mar 2002High WindWind—$4K——1Forecast zone
6 Jul 1999Thunderstorm WindWind58 mph———1County
14 Aug 2005LightningLightning————1County
1 Sep 2003FloodFlood—$5.0M———Forecast zone
29 Jul 2024Thunderstorm WindWind64 mph$4.5M———County
14 Mar 2024TornadoTornadoEF2$4.0M———County
20 Sep 2002TornadoTornadoF2$3.0M$15K——County
1 Sep 2003FloodFlood—$2.5M———Forecast zone
22 Jan 1999FloodFlood—$1.7M———Forecast zone
11 Jun 2026Thunderstorm WindWind69 mph$400K———County
21 Jan 1999FloodFlood—$375K———Forecast zone
26 Nov 1965TornadoTornadoF3$250K———County
26 Jun 1973TornadoTornadoF1$250K———County
3 Jun 1989TornadoTornadoF1$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
25 Aug 2026DR-4933Major disasterFloodSevere Storms, Straight-Line Winds, Tornadoes, And FloodingIndividual assistance, Public assistance
15 Aug 2026EM-3651EmergencyFloodSevere Storms, Straight-Line Winds, Tornadoes, And FloodingPublic assistance
24 Jan 2026EM-3641EmergencyWinter StormSevere Winter StormPublic assistance
3 Apr 2020DR-4515Major disasterBiologicalCovid-19 PandemicIndividual assistance, Public assistance
13 Mar 2020EM-3456EmergencyBiologicalCovid-19Public assistance
12 Mar 2007EM-3274EmergencySnowstormSnowPublic assistance
10 Sep 2005EM-3238EmergencyHurricaneHurricane Katrina EvacuationPublic assistance
21 Jan 2005DR-1573Major disasterSevere StormSevere Winter Storms And FloodingIndividual assistance, Public assistance
11 Jan 2005EM-3197EmergencySnowstormSnowPublic assistance
3 Jun 2004DR-1520Major disasterSevere StormSevere Storms, Tornadoes, And FloodingIndividual assistance
5 Sep 2003DR-1487Major disasterSevere StormSevere Storms, Tornadoes, And FloodingIndividual assistance
11 Jul 2003DR-1476Major disasterSevere StormSevere Storms, Tornadoes, And FloodingIndividual assistance
25 Sep 2002DR-1433Major disasterSevere StormSevere Storms And TornadoesIndividual assistance
15 Jan 1999EM-3135EmergencySnowstormIn-Winter Storm 12/23/98Public assistance
2 Apr 1996DR-1109Major disasterFloodBlizzard Of 96Public assistance
18 Sep 1992DR-962Major disasterSevere StormSevere Storms, Tornadoes & FloodingPublic assistance
29 Mar 1991DR-899Major disasterSevere Ice StormSevere Ice StormPublic assistance
5 Jan 1991DR-891Major disasterFloodSevere Storms & FloodingIndividual assistance
4 Apr 1974DR-423Major 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 Delaware County, 1978 to 2026 (hover for the amount paid).
Claims since 1978302
Paid claims218
Total paid$3.8M
Average paid claim$17K
Repetitive-loss properties303 severe
Residential policies in force3230.7% of 44,375 structures
Year of lossClaimsPaid claimsAmount paidAverage paid
20265934$1,216,903$35,791
202510$0—
202411$6,744$6,744
202220$0—
202020$0—
201962$43,516$21,758
201811$8,598$8,598
201721$38,302$38,302
201642$47,914$23,957
20151511$264,126$24,011
201422$10,280$5,140
20131514$257,108$18,365
20113229$545,483$18,810
201010$0—
200821$22,809$22,809
200722$7,503$3,751
200610$0—
20051411$118,785$10,799
20033731$579,956$18,708
200283$7,165$2,388
199810$0—
199632$25,491$12,745
199510$0—
199421$2,160$2,160
19931411$130,374$11,852

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 76.3 of 100
Expected annual loss$34MRelatively Low
Social vulnerabilityRelatively Moderate
Community resilienceVery High
Hazard (NRI)Risk ratingExpected annual loss
Inland floodingRelatively Moderate$20,537,661
TornadoRelatively High$7,006,570
EarthquakeRelatively Low$2,049,243
HailRelatively Moderate$1,184,093
Cold waveRelatively Low$884,692
Strong windRelatively Moderate$802,455
LightningRelatively Moderate$574,806
Heat waveVery Low$171,979
Winter weatherRelatively Moderate$152,204
Ice stormRelatively Low$104,443
DroughtRelatively Low$88,032
HurricaneVery Low$15,303
WildfireVery Low$8,137
LandslideVery Low$378

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 miles5
Tracks within 50 miles2
Hurricane strength within 50 miles0
StormYearClosest approachMax wind while within 100 mi
Ike200895 mi58 mph
Unnamed Atlantic storm192392 mi40 mph
Unnamed Atlantic storm191549 mi40 mph
Unnamed Atlantic storm190226 mi40 mph
Unnamed Atlantic storm189292 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 Delaware County, IN?

NCEI records 117 hail events in Delaware County since 1950, in 33 different years; that is about 1.5 recorded events a year. 25 reports were golf-ball size (1.75 in) or larger.

Has Delaware County had a tornado?

Yes. NCEI records 25 tornadoes in Delaware County since 1950, 10 of them rated (E)F2 or stronger. Tornado deaths recorded: 0.

When was the last federal disaster declaration for Delaware County?

25 Aug 2026: Severe Storms, Straight-Line Winds, Tornadoes, And Flooding, a major disaster declaration for flood. The county appears in 19 declarations since 1953.

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

302 NFIP claims since 1978, 218 of them paid, for $3.8M in total. FEMA publishes these figures redacted and aggregated; individual properties are not identified.

Is Delaware 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 "Very High" for community resilience. These ratings are FEMA's relative comparison across all US counties.

How does Delaware County compare with the rest of Indiana?

143.1 recorded events per 100 square miles against 120.7 statewide, and 2.7 NFIP claims per 1,000 residents against 2.9. 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.