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Dearborn County, Indiana severe weather history spans 301 recorded events between 1956 and 2025. The dominant hazard is thunderstorm wind, accounting for 51.5% of all recorded events. It ranks #1,779 nationally and #49 in Indiana.
301
Recorded events
0
Direct deaths
21
Direct injuries
$5.1M
Property damage
The record
What the Dearborn County, Indiana severe weather history record shows
Across the archive, Dearborn County, Indiana severe weather history averages 4.4 recorded events a year. The busiest stretch on record is the 2010s, with 101 events logged in that decade alone. Roughly 21 events fall before 1990 and 280 from 1990 onward — a gap that reflects the expansion of NOAA reporting practice as much as the weather itself.
The costliest is tornado, with $3.2M in reported property damage. In total, 7 distinct hazard types appear in this county archive, each listed with its own dated record below.
By hazard type
Every hazard type recorded in Dearborn County
| Hazard | Events | Deaths | Damage | Max | Span |
|---|---|---|---|---|---|
| Thunderstorm Wind | 155 | 0 | $834K | 70 | 1956–2025 |
| Hail | 54 | 0 | $536K | 2.5 | 1959–2024 |
| Flash Flood | 53 | 0 | $335K | 0 | 1996–2025 |
| Flood | 19 | 0 | $13K | 0 | 2008–2023 |
| Tornado | 17 | 0 | $3.2M | F4 | 1974–2025 |
| Heavy Rain | 2 | 0 | $0 | 0 | 2014–2016 |
| Lightning | 1 | 0 | $100K | 0 | 1996–1996 |
Decade by decade
Dearborn County, Indiana severe weather history by decade
Reporting practice changed over time — early decades are undercounted, not calmer.
Tornado tracks
Paths crossing this county
18 mapped tornado paths intersect this county: 13 touched down inside it and 5 crossed in from a neighbouring county. This comes from path geometry, not county-tagged reports.
| Date | Scale | Deaths | Injuries | Path length | Origin |
|---|---|---|---|---|---|
| 1990-06-02 | EF4 | 0 | 37 | 33.0 mi | Touched down here |
| 1974-04-03 | EF4 | 0 | 104 | 27.1 mi | Crossed in |
| 1990-06-02 | EF2 | 0 | 3 | 23.0 mi | Crossed in |
| 1956-02-25 | EF2 | 0 | 0 | 0.5 mi | Touched down here |
| 2025-05-16 | EF1 | 0 | 0 | 6.3 mi | Crossed in |
| 2021-06-18 | EF1 | 0 | 0 | 0.5 mi | Touched down here |
| 2020-04-08 | EF0 | 0 | 0 | 1.0 mi | Touched down here |
| 2017-10-07 | EF0 | 0 | 0 | 5.7 mi | Crossed in |
| 2011-05-23 | EF0 | 0 | 0 | 3.1 mi | Crossed in |
| 2010-10-26 | EF0 | 0 | 0 | 0.1 mi | Touched down here |
Significant events
Deadliest events on record in Dearborn County
| Date | Type | Location | Deaths | Injuries | Damage |
|---|---|---|---|---|---|
| Jun 3, 1990 | Tornado | 0 | 21 | $2.5M |
From the record
What the reports say
Written by National Weather Service staff at the time of the event · public domain
Numerous reports of high water and flash flooding were received from the Aurora and Guilford areas. Several people and pets were stranded in Guilford due to rising water. Two vehicles were also swept away in the Guilford area after their occupants escaped.
The tornado likely began in a wooded area behind Longbranch Road, where downed trees were first noted. The most significant damage occurred at two residences on Longbranch Road. Nearly half of the metal roof of one residence was lifted and thrown in multiple directions, with insulation splattered on the residence and even onto parked vehicles. Trees on both properties were knocked down or blown over in multiple directions and the tree damage exhibited a very convergent pattern. The tornado is believed to have lifted in another wooded area to the southeast of Longbranch Road, as no other damage was seen on any roads to the southeast.
The westernmost extent of damage was found near Davies Road and US Route 62 south-southwest of Dillsboro. More significant damage occurred south of Dillsboro on Arlington Road, Martin Road, and Kachina Trail. Tree damage was more extensive through this area, with roof damage to several residences, and a few barns and outbuildings destroyed. Significant tree damage was also observed to the east on Bocock Road and Indiana State Road 262, again with many trees snapped or uprooted and a few instances of minor structural damage. Some tree damage was also observed on Hueseman Road. This was part of about a 13 mile swath of damage that continued into Ohio County. The damage was consistent with winds in the 70 to 80 mph range.
Context
Risk, population and federal disasters
Relatively Low
FEMA NRI risk rating
51,094
Population (ACS)
$243K
Median home value
20
Federal declarations
| Declared | Incident | Title | Type |
|---|---|---|---|
| Jan 24, 2026 | Winter Storm | SEVERE WINTER STORM | EM |
| Apr 3, 2020 | Biological | COVID-19 PANDEMIC | DR |
| Mar 13, 2020 | Biological | COVID-19 | EM |
| May 4, 2018 | Flood | SEVERE STORMS AND FLOODING | DR |
| Jun 23, 2011 | Severe Storm | SEVERE STORMS, TORNADOES, STRAIGHT-LINE WINDS, AND | DR |
| Sep 23, 2008 | Severe Storm | SEVERE STORMS AND FLOODING | DR |
Quick answers
Frequently asked
How many severe weather events have been recorded in Dearborn County, Indiana?
301 events are on record between 1956 and 2025, causing 0 direct deaths and $5.1M in property damage.
What is the most common severe weather hazard in Dearborn County?
Thunderstorm Wind, with 155 recorded events — 51.5% of everything in the archive for this county.
How many tornadoes have crossed Dearborn County?
18 mapped tornado paths intersect the county boundary; 13 of them touched down inside it. This is derived from path geometry, not county-tagged reports.
How many federal disaster declarations cover Dearborn County?
20 federal disaster declarations from FEMA include Dearborn County, each tied to a specific incident period.
How risky is Dearborn County compared with the rest of the country?
FEMA's National Risk Index rates Dearborn County as relatively low risk, placing it in the 45 percentile of its state for expected annual loss.
Where does the Dearborn County, Indiana severe weather history data come from?
Every figure is drawn from United States federal public-domain records: NOAA/NCEI Storm Events for the event archive, NOAA SPC SVRGIS for mapped tornado paths, FEMA for disaster declarations and risk ratings, and the U.S. Census for population context. Dates are shown in UTC and recent entries may still be revised by NOAA.
Nearby
Neighbouring counties
- Daviess County 316
- Decatur County 260
- Crawford County 347
- DeKalb County 199
- Clinton County 284
- Delaware County 446
Cite this page
“Dearborn County, Indiana.” Severe Weather History. severeweatherhistory.com/county/indiana/dearborn-county/ · Data: NOAA/NCEI, FEMA, U.S. Census — public domain.