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Clermont County, Ohio severe weather history spans 639 recorded events between 1953 and 2026. The dominant hazard is thunderstorm wind, accounting for 57.3% of all recorded events. It ranks #496 nationally and #10 in Ohio.
639
Recorded events
6
Direct deaths
59
Direct injuries
$23.6M
Property damage
The record
What the Clermont County, Ohio severe weather history record shows
Across the archive, Clermont County, Ohio severe weather history averages 8.8 recorded events a year. The busiest stretch on record is the 2010s, with 233 events logged in that decade alone. Roughly 36 events fall before 1990 and 603 from 1990 onward — a gap that reflects the expansion of NOAA reporting practice as much as the weather itself.
The deadliest hazard in the Clermont County, Ohio record is tornado, responsible for 4 direct deaths. The costliest is tornado, with $15.3M 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 Clermont County
| Hazard | Events | Deaths | Damage | Max | Span |
|---|---|---|---|---|---|
| Thunderstorm Wind | 366 | 0 | $3.2M | 78 | 1965–2026 |
| Hail | 119 | 0 | $2.7M | 2.5 | 1977–2025 |
| Flash Flood | 88 | 0 | $2.4M | 0 | 1996–2025 |
| Flood | 32 | 2 | $66K | 0 | 2008–2025 |
| Tornado | 26 | 4 | $15.3M | F4 | 1953–2023 |
| Lightning | 6 | 0 | $61K | 0 | 1996–2002 |
| Heavy Rain | 2 | 0 | $0 | 0 | 2011–2015 |
Decade by decade
Clermont County, Ohio severe weather history by decade
Reporting practice changed over time — early decades are undercounted, not calmer.
Tornado tracks
Paths crossing this county
24 mapped tornado paths intersect this county: 20 touched down inside it and 4 crossed in from a neighbouring county. This comes from path geometry, not county-tagged reports.
| Date | Scale | Deaths | Injuries | Path length | Origin |
|---|---|---|---|---|---|
| 1968-04-23 | EF4 | 1 | 33 | 24.1 mi | Touched down here |
| 1969-08-09 | EF3 | 4 | 247 | 22.2 mi | Crossed in |
| 2012-03-02 | EF3 | 3 | 13 | 20.4 mi | Crossed in |
| 1997-07-02 | EF3 | 0 | 0 | 12.0 mi | Touched down here |
| 2022-07-06 | EF2 | 0 | 2 | 4.8 mi | Touched down here |
| 1990-06-02 | EF2 | 0 | 0 | 4.0 mi | Touched down here |
| 2022-07-06 | EF1 | 0 | 0 | 2.2 mi | Touched down here |
| 2018-02-24 | EF1 | 0 | 0 | 3.5 mi | Touched down here |
| 2017-03-01 | EF1 | 0 | 0 | 6.4 mi | Touched down here |
| 2017-03-26 | EF1 | 0 | 0 | 0.3 mi | Touched down here |
Significant events
Deadliest events on record in Clermont County
| Date | Type | Location | Deaths | Injuries | Damage |
|---|---|---|---|---|---|
| Mar 2, 2012 | Tornado | MOSCOW | 3 | 13 | $5.7M |
| Jun 9, 2010 | Flood | CEDRON | 2 | 0 | $3K |
| Apr 23, 1968 | Tornado | 1 | 29 | $2.5M | |
| Aug 9, 1969 | Tornado | 0 | 7 | $250K | |
| Aug 18, 2002 | Lightning | MILFORD | 0 | 3 | $0 |
| Jul 6, 2022 | Tornado | GOSHEN | 0 | 2 | $3.0M |
| Jun 11, 1999 | Lightning | CENTRAL PORTION | 0 | 2 | $0 |
| Apr 8, 1980 | Tornado | 0 | 2 | $250K |
From the record
What the reports say
Written by National Weather Service staff at the time of the event · public domain
A multiple vortex tornado tracked across the southern part of the county. The tornado damaged or destroyed 56 mobile homes and 27 single family homes. Several barns and sheds were destroyed and numerous trees were downed. No serious injuries or deaths occurred with this tornado.
Eleven bridges along county and township roads sustained damage in Miami, Goshen, Wayne and Gardner Townships. Four hundred homes, four businesses, two public buildings and more than two dozen cars, driveways and private bridges were damaged due to the high water. Total estimate of public assistance is 1,786,058.
Trees were downed in Amelia and a mobile home was blown over. Several other mobile homes received minor damage. Spotters in the are reported a wind gust to 61 mph. Trees were also downed in Washington Township and other locations with several reports of minor roof damage.
Context
Risk, population and federal disasters
Relatively Low
FEMA NRI risk rating
211,181
Population (ACS)
$266K
Median home value
18
Federal declarations
| Declared | Incident | Title | Type |
|---|---|---|---|
| Mar 31, 2020 | Biological | COVID-19 PANDEMIC | DR |
| Mar 13, 2020 | Biological | COVID-19 | EM |
| Jun 30, 2012 | Severe Storm | SEVERE STORMS | EM |
| Jul 13, 2011 | Severe Storm | SEVERE STORMS AND FLOODING | DR |
| Oct 24, 2008 | Severe Storm | SEVERE WIND STORM ASSOCIATED WITH TROPICAL DEPRESSION IKE | DR |
| Apr 24, 2008 | Snowstorm | RECORD SNOW AND NEAR RECORD SNOW | EM |
Quick answers
Frequently asked
How many severe weather events have been recorded in Clermont County, Ohio?
639 events are on record between 1953 and 2026, causing 6 direct deaths and $23.6M in property damage.
What is the most common severe weather hazard in Clermont County?
Thunderstorm Wind, with 366 recorded events — 57.3% of everything in the archive for this county.
How many tornadoes have crossed Clermont County?
24 mapped tornado paths intersect the county boundary; 20 of them touched down inside it. This is derived from path geometry, not county-tagged reports.
How many federal disaster declarations cover Clermont County?
18 federal disaster declarations from FEMA include Clermont County, each tied to a specific incident period.
How risky is Clermont County compared with the rest of the country?
FEMA's National Risk Index rates Clermont County as relatively low risk, placing it in the 78 percentile of its state for expected annual loss.
Where does the Clermont County, Ohio 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
- Clark County 467
- Clinton County 541
- Champaign County 283
- Columbiana County 614
- Carroll County 387
- Coshocton County 445
Cite this page
“Clermont County, Ohio.” Severe Weather History. severeweatherhistory.com/county/ohio/clermont-county/ · Data: NOAA/NCEI, FEMA, U.S. Census — public domain.