350
Recorded events
0
Direct deaths
4
Direct injuries
$9.2M
Property damage
Thunderstorm Wind in Dallas County, Iowa: 350 recorded events between 1962 and 2025. The strongest on record measured 90. That places the county #304 nationally and #6 statewide for this hazard.
Decade by decade
Thunderstorm Wind in Dallas County, Iowa: events per decade
Reporting practice changed over time — early decades are undercounted, not calmer.
The busiest decade for thunderstorm wind in Dallas County is the 2010s, when 125 of the county's 350 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 Dallas County archive, thunderstorm wind makes up 36.3% of all recorded severe weather across 8 hazard types. Nationally the county sits at #304 for this hazard and #6 within Iowa, putting it in the 90.4 percentile of all U.S. counties.
Seasonality
Events by month
Jun is the peak month for thunderstorm wind in Dallas County with 93 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 |
|---|---|---|---|---|---|
| Jun 17, 1990 | 50 | 0 | 3 | $0 | |
| May 23, 2007 | DAWSON | 57 | 0 | 1 | $25K |
Most recent
Latest recorded events
| Date | Location | Magnitude | Damage |
|---|---|---|---|
| Aug 10, 2025 | ADEL | 54 | $0 |
| Jul 11, 2025 | HADDEN HILL | 61 | $0 |
| Jul 11, 2025 | WAUKEE | 61 | $0 |
| Jul 11, 2025 | DALLAS CENTER | 52 | $0 |
| Aug 1, 2024 | DE SOTO | 52 | $0 |
| Jun 26, 2024 | ADEL | 50 | $0 |
| May 24, 2024 | PERRY | 55 | $0 |
| May 24, 2024 | PERRY MUNI ARPT | 55 | $0 |
| May 21, 2024 | SHULER MINE | 56 | $15K |
| May 21, 2024 | HADDEN HILL | 61 | $0 |
Other hazards here
More from Dallas County
- Hail 249
- Heavy Rain 140
- Flood 83
- Tornado 58
- Flash Flood 53
From the record
What the reports say
Written by National Weather Service staff at the time of the event · public domain
Emergency manager reported numerous trees and power lines down throughout Dallas County. Cities affected include Adel, Dallas Center, Redfield, and Dexter. Tree limb also reported on the EM's roof. Time estimated from when storm hit Adel.
Quick answers
Frequently asked
How many thunderstorm wind events are on record in Dallas County, Iowa?
350 thunderstorm wind events are recorded in Dallas County between 1962 and 2025, causing 0 direct deaths.
What is the strongest thunderstorm wind recorded in Dallas County?
The strongest thunderstorm wind on record in Dallas County measured 90.
Where does the thunderstorm wind data for Dallas 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 Dallas County, Iowa.” Severe Weather History. severeweatherhistory.com/county/iowa/dallas-county/thunderstorm-wind/ · Data: NOAA/NCEI, FEMA, U.S. Census — public domain.