134
Recorded events
0
Direct deaths
4
Direct injuries
$1.6M
Property damage
Thunderstorm Wind in Hamilton County, Iowa: 134 recorded events between 1969 and 2025. The strongest on record measured 78. That places the county #1,746 nationally and #60 statewide for this hazard.
Decade by decade
Thunderstorm Wind in Hamilton County, Iowa: events per decade
Reporting practice changed over time — early decades are undercounted, not calmer.
The busiest decade for thunderstorm wind in Hamilton County is the 2000s, when 47 of the county's 134 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 Hamilton County archive, thunderstorm wind makes up 30.6% of all recorded severe weather across 8 hazard types. Nationally the county sits at #1,746 for this hazard and #60 within Iowa, putting it in the 44.6 percentile of all U.S. counties.
Seasonality
Events by month
Jun is the peak month for thunderstorm wind in Hamilton County with 40 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 |
|---|---|---|---|---|---|
| Apr 8, 1999 | ELLSWORTH | 61 | 0 | 4 | $20K |
Most recent
Latest recorded events
| Date | Location | Magnitude | Damage |
|---|---|---|---|
| Sep 23, 2025 | HIGHVIEW | 52 | $0 |
| Jul 28, 2025 | WEBSTER CITY | 52 | $0 |
| Mar 14, 2025 | STRATFORD | 56 | $2K |
| Mar 14, 2025 | WEBSTER CITY ARPT | 56 | $0 |
| Jul 7, 2024 | ELLSWORTH | 52 | $0 |
| May 24, 2024 | WEBSTER CITY | 52 | $0 |
| May 24, 2024 | ELLSWORTH | 52 | $0 |
| May 24, 2024 | WEBSTER CITY | 52 | $0 |
| May 21, 2024 | WEBSTER CITY | 52 | $0 |
| May 21, 2024 | BLAIRSBURG | 52 | $0 |
Other hazards here
More from Hamilton County
From the record
What the reports say
Written by National Weather Service staff at the time of the event · public domain
Local law enforcement reports trees and power lines down at several locations around Hamilton County with the bulk of the damage in the Webster City and Kamrar areas. Widespread power outages after the storm had only been partly restored by morning.
Quick answers
Frequently asked
How many thunderstorm wind events are on record in Hamilton County, Iowa?
134 thunderstorm wind events are recorded in Hamilton County between 1969 and 2025, causing 0 direct deaths.
What is the strongest thunderstorm wind recorded in Hamilton County?
The strongest thunderstorm wind on record in Hamilton County measured 78.
Where does the thunderstorm wind data for Hamilton 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 Hamilton County, Iowa.” Severe Weather History. severeweatherhistory.com/county/iowa/hamilton-county/thunderstorm-wind/ · Data: NOAA/NCEI, FEMA, U.S. Census — public domain.