262
Recorded events
0
Direct deaths
5
Direct injuries
$1.6M
Property damage
Thunderstorm Wind in Delaware County, Ohio: 262 recorded events between 1966 and 2025. The strongest on record measured 66. That places the county #621 nationally and #32 statewide for this hazard.
Decade by decade
Thunderstorm Wind in Delaware County, Ohio: events per decade
Reporting practice changed over time — early decades are undercounted, not calmer.
The busiest decade for thunderstorm wind in Delaware County is the 2010s, when 70 of the county's 262 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 Delaware County archive, thunderstorm wind makes up 61.2% of all recorded severe weather across 7 hazard types. Nationally the county sits at #621 for this hazard and #32 within Ohio, putting it in the 80.3 percentile of all U.S. counties.
Seasonality
Events by month
Jul is the peak month for thunderstorm wind in Delaware County with 88 recorded events, while Dec 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 22, 2017 | TROYTON | 50 | 0 | 3 | $5K |
| Sep 16, 2010 | POWELL | 61 | 0 | 1 | $40K |
| Jul 8, 1994 | Delaware | 0 | 0 | 1 | $5K |
Most recent
Latest recorded events
| Date | Location | Magnitude | Damage |
|---|---|---|---|
| Aug 13, 2025 | DELAWARE | 50 | $5K |
| Jul 12, 2025 | OLIVE GREEN | 45 | $3K |
| Jun 25, 2025 | WARRENSBURG | 50 | $2K |
| Jun 19, 2025 | DELAWARE | 50 | $6K |
| May 17, 2025 | CHESHIRE | 50 | $6K |
| May 17, 2025 | CHESHIRE | 50 | $6K |
| Apr 29, 2025 | AFRICA | 50 | $1K |
| Jul 14, 2024 | AFRICA | 45 | $500 |
| Apr 17, 2024 | HARLEM | 50 | $2K |
| Jul 24, 2023 | SHAWNEE HILLS | 50 | $10K |
Other hazards here
More from Delaware County
- Hail 92
From the record
What the reports say
Written by National Weather Service staff at the time of the event · public domain
Trees were reported down around the area due to damaging thunderstorm winds. A portion of the roof was peeled off of the Olentangy High School gym. One woman was injured when a tree fell onto her home causing severe damage to the roof. The woman was taken to a nearby hospital for possible concussion.
A strip mall under construction in southern Delaware County along Ohio Route 750 sustained extensive damage due to thunderstorm winds. Winds to 58 mph were measured in Delaware, and numerous power lines and trees were downed at several locations. Some trees fell onto vehicles and across roads.
Quick answers
Frequently asked
How many thunderstorm wind events are on record in Delaware County, Ohio?
262 thunderstorm wind events are recorded in Delaware County between 1966 and 2025, causing 0 direct deaths.
What is the strongest thunderstorm wind recorded in Delaware County?
The strongest thunderstorm wind on record in Delaware County measured 66.
Where does the thunderstorm wind data for Delaware 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 Delaware County, Ohio.” Severe Weather History. severeweatherhistory.com/county/ohio/delaware-county/thunderstorm-wind/ · Data: NOAA/NCEI, FEMA, U.S. Census — public domain.