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Miami County, Ohio severe weather history spans 406 recorded events between 1955 and 2026. The dominant hazard is thunderstorm wind, accounting for 57.6% of all recorded events. It ranks #1,230 nationally and #45 in Ohio.
406
Recorded events
1
Direct deaths
10
Direct injuries
$20.0M
Property damage
The record
What the Miami County, Ohio severe weather history record shows
Across the archive, Miami County, Ohio severe weather history averages 5.7 recorded events a year. The busiest stretch on record is the 2010s, with 126 events logged in that decade alone. Roughly 47 events fall before 1990 and 359 from 1990 onward — a gap that reflects the expansion of NOAA reporting practice as much as the weather itself.
The deadliest hazard in the Miami County, Ohio record is lightning, responsible for 1 direct deaths. The costliest is tornado, with $16.9M 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 Miami County
| Hazard | Events | Deaths | Damage | Max | Span |
|---|---|---|---|---|---|
| Thunderstorm Wind | 234 | 0 | $1.6M | 70 | 1964–2026 |
| Hail | 80 | 0 | $25K | 2.75 | 1971–2026 |
| Tornado | 35 | 0 | $16.9M | F2 | 1955–2024 |
| Flood | 26 | 0 | $90K | 0 | 2006–2025 |
| Flash Flood | 23 | 0 | $1.3M | 0 | 1996–2025 |
| Lightning | 5 | 1 | $24K | 0 | 1996–2019 |
| Heavy Rain | 3 | 0 | $1K | 0 | 2011–2014 |
Decade by decade
Miami County, Ohio severe weather history by decade
Reporting practice changed over time — early decades are undercounted, not calmer.
Tornado tracks
Paths crossing this county
37 mapped tornado paths intersect this county: 30 touched down inside it and 7 crossed in from a neighbouring county. This comes from path geometry, not county-tagged reports.
| Date | Scale | Deaths | Injuries | Path length | Origin |
|---|---|---|---|---|---|
| 2024-03-14 | EF3 | 1 | 39 | 41.3 mi | Crossed in |
| 2019-05-27 | EF3 | 0 | 1 | 10.5 mi | Crossed in |
| 2022-06-08 | EF2 | 0 | 0 | 13.8 mi | Touched down here |
| 1961-06-08 | EF2 | 0 | 0 | 0.1 mi | Touched down here |
| 2022-07-23 | EF1 | 0 | 0 | 1.8 mi | Touched down here |
| 2017-05-24 | EF1 | 0 | 0 | 1.9 mi | Touched down here |
| 2017-05-24 | EF1 | 0 | 0 | 4.1 mi | Crossed in |
| 2016-03-14 | EF1 | 0 | 0 | 3.0 mi | Crossed in |
| 1999-04-09 | EF1 | 0 | 0 | 3.5 mi | Touched down here |
| 1992-06-18 | EF1 | 0 | 0 | 4.0 mi | Touched down here |
Significant events
Deadliest events on record in Miami County
| Date | Type | Location | Deaths | Injuries | Damage |
|---|---|---|---|---|---|
| Apr 9, 2001 | Lightning | PIQUA | 1 | 0 | $0 |
| Jun 2, 2007 | Lightning | TROY | 0 | 3 | $0 |
| May 17, 2019 | Thunderstorm Wind | TIPP CITY | 0 | 2 | $100K |
| May 28, 2019 | Tornado | POTSDAM | 0 | 1 | $10.0M |
| Jun 29, 2012 | Thunderstorm Wind | PIQUA | 0 | 1 | $10K |
| Jun 3, 1996 | Lightning | TROY | 0 | 1 | $0 |
| May 22, 1982 | Tornado | 0 | 1 | $25K | |
| Mar 1, 1955 | Tornado | 0 | 1 | $250K |
From the record
What the reports say
Written by National Weather Service staff at the time of the event · public domain
The tornado developed at 1850EST in Randolph County, Indiana, just south of Farmland. The tornado traveled east across Randolph County, Indiana, and Darke County, Ohio, and entered Miami County at 1952EST, along State Route 721, just north of Grandview Drive. The tornado reached EF-2 intensity with winds of up to 120 mph near the intersection of Klinger and Rangeline Roads. Two homes had a significant amount of roof and some external wall removal while other nearby properties had outbuildings that were severely damaged.||The last damage was noted along State Route 48 near the intersection with Klinger Road. The tornado is believed to have dissipated near this location at 2000EST.
Numerous large trees were sheared or uprooted. Nineteen loaded trailers were overturned and two air conditioning units were blown off a roof at a distribution center. Eight wooden high voltage electric poles were snapped. Another semi trailer was overturned on a highway. These occurrences were due to damaging thunderstorm winds.
The tornado first touched down near Pemberton Road, where it caused significant damage to a barn and a garage on Penny Road. The tornado continued east-northeast and moved through a commercial area on State Route 41 and then caused roof damage to several homes on the north side of Troy. Consistent damage continued to as far east as Deweese Road. Reports and photo evidence from numerous citizens in the area, in addition to emergency management officials, helped determine the extent of this tornado. Maximum winds were estimated to be around 85 mph.
Context
Risk, population and federal disasters
Relatively Low
FEMA NRI risk rating
110,296
Population (ACS)
$229K
Median home value
15
Federal declarations
| Declared | Incident | Title | Type |
|---|---|---|---|
| May 2, 2024 | Tornado | TORNADOES | DR |
| Mar 31, 2020 | Biological | COVID-19 PANDEMIC | DR |
| Mar 13, 2020 | Biological | COVID-19 | EM |
| Jun 18, 2019 | Tornado | SEVERE STORMS, STRAIGHT-LINE WINDS, TORNADOES, FLOODING, LANDSLIDES, AND MUDSLIDE | DR |
| Aug 20, 2012 | Severe Storm | SEVERE STORMS AND STRAIGHT-LINE WINDS | DR |
| Jun 30, 2012 | Severe Storm | SEVERE STORMS | EM |
Quick answers
Frequently asked
How many severe weather events have been recorded in Miami County, Ohio?
406 events are on record between 1955 and 2026, causing 1 direct deaths and $20.0M in property damage.
What is the most common severe weather hazard in Miami County?
Thunderstorm Wind, with 234 recorded events — 57.6% of everything in the archive for this county.
How many tornadoes have crossed Miami County?
37 mapped tornado paths intersect the county boundary; 30 of them touched down inside it. This is derived from path geometry, not county-tagged reports.
How many federal disaster declarations cover Miami County?
15 federal disaster declarations from FEMA include Miami County, each tied to a specific incident period.
How risky is Miami County compared with the rest of the country?
FEMA's National Risk Index rates Miami County as relatively low risk, placing it in the 61 percentile of its state for expected annual loss.
Where does the Miami 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
- Mercer County 381
- Monroe County 227
- Meigs County 274
- Montgomery County 808
- Medina County 522
- Morgan County 201
Cite this page
“Miami County, Ohio.” Severe Weather History. severeweatherhistory.com/county/ohio/miami-county/ · Data: NOAA/NCEI, FEMA, U.S. Census — public domain.