246
Recorded events
0
Direct deaths
1
Direct injuries
$3.0M
Property damage
Hail in Gregory County, South Dakota: 246 recorded events between 1957 and 2025. The strongest on record measured 3. That places the county #452 nationally and #23 statewide for this hazard.
Decade by decade
Hail in Gregory County, South Dakota: events per decade
Reporting practice changed over time — early decades are undercounted, not calmer.
The busiest decade for hail in Gregory County is the 2000s, when 116 of the county's 246 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, hail makes up 61.5% of all recorded severe weather across 8 hazard types. Nationally the county sits at #452 for this hazard and #23 within South Dakota, putting it in the 85.5 percentile of all U.S. counties.
Seasonality
Events by month
Jun is the peak month for hail in Gregory County with 97 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 |
|---|---|---|---|---|---|
| Aug 9, 2002 | HERRICK | 1.5 | 0 | 1 | $100K |
Most recent
Latest recorded events
| Date | Location | Magnitude | Damage |
|---|---|---|---|
| Aug 3, 2025 | GREGORY | 1 | $0 |
| Jul 28, 2025 | BURKE | 1.75 | $0 |
| Jul 15, 2025 | GREGORY ARPT | 1.25 | $0 |
| Jun 29, 2025 | HERRICK | 1 | $0 |
| Jun 29, 2025 | HERRICK | 0.88 | $0 |
| Jun 19, 2025 | HERRICK | 1 | $0 |
| Aug 26, 2024 | LUCAS | 1 | $0 |
| Aug 25, 2024 | BURKE MUNI ARPT | 1 | $0 |
| Aug 25, 2024 | BURKE MUNI ARPT | 1.75 | $0 |
| Aug 25, 2024 | GREGORY ARPT | 2.75 | $0 |
Other hazards here
More from Gregory County
From the record
What the reports say
Written by National Weather Service staff at the time of the event · public domain
Large hail, up to two inches in diameter, fell in a swath a few miles wide from northwestern to south central Gregory County. The hail broke numerous windows, severely damaged siding and roofs of homes and other buildings, and severely damaged vehicles, while covering the ground in several places. Property damage was especially severe in the town of Gregory. Crop damage was also severe along the swath, with corn crops in some areas destroyed to the point of only small stubble left.
Large hail covered the ground in a swath several miles long. The hail broke windows in numerous vehicles and several buildings, covered the ground, and severely damaged crops. A swath of crops several miles long, especially oats, alfalfa, and corn, was estimated to be near 100 percent loss. The amount of crops damage could not be determined, as there were several areas where crops, especially corn, was expected to partially recover.
Large hail, driven by severe winds, broke windows in vehicles and buildings, and cause other damage to vehicles. A man was slightly injured when he was hit by hail while sitting in his pickup, after the hail had broken the window. Some area crops, already described to be in poor shape, were totally destroyed by the wind driven hail. The amount of crop damage was not known. The hail accumulated up to six inches, with drifts to two feet.
Quick answers
Frequently asked
How many hail events are on record in Gregory County, South Dakota?
246 hail events are recorded in Gregory County between 1957 and 2025, causing 0 direct deaths.
What is the strongest hail recorded in Gregory County?
The strongest hail on record in Gregory County measured 3.
Where does the hail 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.
Cite this page
“Hail in Gregory County, South Dakota.” Severe Weather History. severeweatherhistory.com/county/south-dakota/gregory-county/hail/ · Data: NOAA/NCEI, FEMA, U.S. Census — public domain.