165
Recorded events
0
Direct deaths
0
Direct injuries
$2.3M
Property damage
Thunderstorm Wind in Clayton County, Iowa: 165 recorded events between 1959 and 2025. The strongest on record measured 75. That places the county #1,377 nationally and #43 statewide for this hazard.
Decade by decade
Thunderstorm Wind in Clayton County, Iowa: events per decade
Reporting practice changed over time — early decades are undercounted, not calmer.
The busiest decade for thunderstorm wind in Clayton County is the 2010s, when 60 of the county's 165 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 Clayton County archive, thunderstorm wind makes up 30.8% of all recorded severe weather across 8 hazard types. Nationally the county sits at #1,377 for this hazard and #43 within Iowa, putting it in the 56.2 percentile of all U.S. counties.
Seasonality
Events by month
Jun is the peak month for thunderstorm wind in Clayton County with 47 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.
Most recent
Latest recorded events
| Date | Location | Magnitude | Damage |
|---|---|---|---|
| Jul 11, 2025 | GARBER | 50 | $0 |
| Sep 20, 2024 | NATIONAL | 45 | $0 |
| Sep 20, 2024 | GARNAVILLO | 50 | $0 |
| Jul 15, 2024 | NORTH BUENA VISTA | 65 | $0 |
| Jun 12, 2024 | GUTTENBURG | 60 | $60K |
| Jun 12, 2024 | LUANA | 60 | $0 |
| May 21, 2024 | MONONA | 57 | $0 |
| Mar 31, 2023 | GUTTENBURG | 53 | $1K |
| Jul 24, 2022 | GUTTENBURG | 40 | $2K |
| Jul 24, 2022 | STRAWBERRY PT | 57 | $5K |
Other hazards here
More from Clayton County
From the record
What the reports say
Written by National Weather Service staff at the time of the event · public domain
A large area of wind damage occurred between Guttenberg and Millvile along U.S. Highway 52. A barn roof was blown off and several other barns were blown down near Millville. Numerous trees were blown down causing U.S. Highway 52 to be closed and a parked semi and trailer were overturned by the winds.
Several trees and branches were downed in the city of Guttenberg. One large, old maple tree snapped power lines and a couple of tree branches fell on a parked van. Wind gusts from severe thunderstorms were estimated at 60 to 70 mph.
Quick answers
Frequently asked
How many thunderstorm wind events are on record in Clayton County, Iowa?
165 thunderstorm wind events are recorded in Clayton County between 1959 and 2025, causing 0 direct deaths.
What is the strongest thunderstorm wind recorded in Clayton County?
The strongest thunderstorm wind on record in Clayton County measured 75.
Where does the thunderstorm wind data for Clayton 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 Clayton County, Iowa.” Severe Weather History. severeweatherhistory.com/county/iowa/clayton-county/thunderstorm-wind/ · Data: NOAA/NCEI, FEMA, U.S. Census — public domain.