241
Recorded events
1
Direct deaths
6
Direct injuries
$5.9M
Property damage
Thunderstorm Wind in Knox County, Ohio: 241 recorded events between 1968 and 2026. The strongest on record measured 70. That places the county #736 nationally and #39 statewide for this hazard.
Decade by decade
Thunderstorm Wind in Knox County, Ohio: events per decade
Reporting practice changed over time — early decades are undercounted, not calmer.
The busiest decade for thunderstorm wind in Knox County is the 2000s, when 83 of the county's 241 recorded events were logged. Comparing decades is useful for spotting active periods, but the earliest years are thin because systematic reporting for this hazard began later.
Within the Knox County archive, thunderstorm wind makes up 65.5% of all recorded severe weather across 8 hazard types. Nationally the county sits at #736 for this hazard and #39 within Ohio, putting it in the 76.6 percentile of all U.S. counties.
Seasonality
Events by month
Jun is the peak month for thunderstorm wind in Knox County with 71 recorded events, while Jan is the quietest. Seasonality here is a property of the archive as much as the climate: reports cluster where population and spotter networks are densest.
Significant events
Deadliest on record
| Date | Location | Scale | Deaths | Injuries | Damage |
|---|---|---|---|---|---|
| Jul 29, 2002 | HOWARD | 0 | 1 | 4 | $50K |
| Jul 22, 2017 | PIPESVILLE | 50 | 0 | 1 | $75K |
| Jun 8, 1995 | Mount Vernon | 0 | 0 | 1 | $700K |
Most recent
Latest recorded events
| Date | Location | Magnitude | Damage |
|---|---|---|---|
| Mar 26, 2026 | MT VERNON | 55 | $0 |
| Mar 26, 2026 | FREDERICKTOWN | 55 | $0 |
| Jun 26, 2025 | MT VERNON | 55 | $0 |
| Jun 25, 2025 | MILLWOOD | 55 | $0 |
| May 17, 2025 | MONROE MILLS | 55 | $0 |
| May 5, 2025 | MT VERNON | 60 | $0 |
| May 2, 2025 | PALMYRA | 60 | $20K |
| Aug 17, 2024 | MARTINSBURG | 55 | $0 |
| Aug 17, 2024 | BLADENSBURG | 55 | $0 |
| Jun 6, 2024 | PIPESVILLE | 65 | $0 |
Other hazards here
More from Knox County
- Hail 80
From the record
What the reports say
Written by National Weather Service staff at the time of the event · public domain
Thunderstorm winds downed many trees near Apple Valley Lake in northeastern Knox County. A vehicle travelling on U.S. 36 just west of Howard was struck by a falling tree. A two year old female inside the car was killed and four other occupants were seriously injured.
An intense line of thunderstorms or Derecho moved across Knox County during the late afternoon of June 29th causing extensive damage. Winds were estimated to be as much as 65 mph. Over 50 percent of residents lost power during this event. Power was not completely restored for several days. Hundreds of trees were downed across the county along with many utility poles forcing the closure of some of roads and streets. Damage to homes and buildings was also extensive. Dozens of homes and buildings lost roofing or siding with many other homes damaged by fallen trees. Clean up costs were extensive. The clean up was hampered by an ongoing heat wave with afternoon temperatures in the upper 90s. Significant crop losses are also expected. Damage from this storm was comparable to the remnants of Hurricane Ike in September 2008.
A downburst with winds as high as 90 mph downed hundreds of trees, some on structures and vehicles. Signs were blown down and some windows were broken and minor roof damage occurred to several buildings. A dog was electrocuted when a live power line fell onto the dogbox. A man was injured by a falling tree limb and another man, sleeping in his bedroom, escaped injury when a large limb crashed through his ceiling missing him by inches. Three state highways where closed until storm debris could be removed, one for over 24 hours.
Quick answers
Frequently asked
How many thunderstorm wind events are on record in Knox County, Ohio?
241 thunderstorm wind events are recorded in Knox County between 1968 and 2026, causing 1 direct deaths.
What is the strongest thunderstorm wind recorded in Knox County?
The strongest thunderstorm wind on record in Knox County measured 70.
Where does the thunderstorm wind data for Knox County come from?
All events come from the NOAA/NCEI Storm Events Database, the federal public-domain archive of severe weather reports. Dates are UTC, damage is as reported and not inflation-adjusted, and the most recent entries may still be revised.
Cite this page
“Thunderstorm Wind in Knox County, Ohio.” Severe Weather History. severeweatherhistory.com/county/ohio/knox-county/thunderstorm-wind/ · Data: NOAA/NCEI, FEMA, U.S. Census — public domain.