Thunderstorm Wind in Gregory County, South Dakota

Thunderstorm Wind in Gregory County, South Dakota: 111 recorded events between 1957 and 2025. The strongest on record measured 88. That places the county #2,069 nationally and #54 statewide for this hazard.

Reporting practice changed over time — early decades are undercounted, not calmer.

The busiest decade for thunderstorm wind in Gregory County is the 2020s, when 35 of the county's 111 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 Gregory County archive, thunderstorm wind makes up 27.8% of all recorded severe weather across 8 hazard types. Nationally the county sits at #2,069 for this hazard and #54 within South Dakota, putting it in the 34.3 percentile of all U.S. counties.

Aug is the peak month for thunderstorm wind in Gregory County with 39 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.

• Hail 246

Written by National Weather Service staff at the time of the event · public domain

How many thunderstorm wind events are on record in Gregory County, South Dakota?

111 thunderstorm wind events are recorded in Gregory County between 1957 and 2025, causing 0 direct deaths.

What is the strongest thunderstorm wind recorded in Gregory County?

The strongest thunderstorm wind on record in Gregory County measured 88.

Where does the thunderstorm wind data for Gregory 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.