The most recent reported hail day was 2025-06-28, 398 days ago. Deuel County is hit in about half the years on record. The largest stone on record here is 2 inches, a hen egg and twice the National Weather Service's 1 inch severe criterion, reported on 2025-06-28 near Gary.
Colored swath = NOAA MRMS radar-estimated hail size; dots = NOAA SPC reports in South Dakota. Radar-indicated, not a guarantee of damage.
The last hail here fell on 2025-06-28, around Gary. A free SwathIQ account -- hand-reviewed, invite within 24-48h -- pulls Deuel County addresses inside a hail swath above your size threshold into a door-knock list you can export, scoped to your approved markets.
Get free access Check an addressOur US-based call center calls the homeowners in this storm and books roof inspections straight onto your calendar. You work the storm; we fill the schedule. We dial -- you do not have to knock a single door.
See call-center options ->NOAA's Storm Prediction Center has logged 22 separate hail days here since 2010 -- 1.3 a year over 17 years of record. They carry 29 reports in total: most hail days here are logged from a single spot. 7 of those 17 years produced none at all. The busiest single year was 2022, with 3 hail days. The last five years track the long-run rate, with 7 days since 2022.
Most hail here stays under 2 inches: only 2 of the 22 days on record passed it, 9%, the last on 2025-06-28. They land in the same month as everything else, June. Golf-ball size is rarer still: 1.75 inches or more on 3 of the 22 days.
Across the whole of South Dakota, see the South Dakota hail map and history.
Reports cluster nearest Brandt -- 5 of the county's 22 hail days -- then Goodwin (4), Gary (3), Toronto (2) and Altamont (2). Beyond those, NOAA names Clear Lake, Moritz, Revillo and Tunerville on more than one hail day apiece.
| Place | Hail days since 2010 | Largest stone |
|---|---|---|
| Toronto | 2 | 1.75″ |
| 4 S Revillo | 2 | 1.00″ |
| Brandt | 2 | 1.00″ |
| 3 S Gary | 1 | 2.00″ |
| 6 W Toronto | 1 | 2.00″ |
The season runs May through July: 18 of the 22 hail days on record fall in those 3 months (82%). June is the single busiest month, with 13 of them (59%). That peak sits inside the window rather than at either end. Hail has also been reported in August and September, outside that window. Reports span 5 of the 12 calendar months; the other 7 have never produced one.
| Month | Hail days |
|---|---|
| May | 4 |
| June | 13 |
| July | 1 |
| August | 3 |
| September | 1 |
That day put 1 report on the map, the biggest 2 inches near Gary. No hail day has been reported here yet this year.
| Date | Max hail | Reports |
|---|---|---|
| 2025-06-28 | 2.00″ | 1 |
| 2025-06-15 | 1.00″ | 1 |
| 2024-06-12 | 1.00″ | 2 |
| 2024-06-02 | 1.00″ | 1 |
| 2022-09-08 | 1.00″ | 2 |
| 2022-05-29 | 1.00″ | 1 |
| 2022-05-08 | 1.25″ | 1 |
| 2019-06-30 | 1.00″ | 1 |
The colored swath is NOAA's MRMS radar estimate of the largest hail per ~1 km cell; the dots are SPC ground reports. Yellow is about an inch, red 1.5 to 2″, purple 2″ and up (hail size vs roof damage). On this county's worst day the reports reached 2 inches, which is the purple band. Look up a street address with the hail history by address tool.
The nearest counties with a page of their own: Hamlin County (30 hail days), Grant County (22) and Codington County (38). Deuel County sits in between.
Hamlin County · Grant County · Codington County
Back to the South Dakota hail map or the U.S. hail map.
Data & method: NOAA/NWS Storm Prediction Center reports + NOAA MRMS MESH radar, Deuel County, South Dakota only. Radar-indicated and observation-based -- informational only, not a guarantee of damage or a valid claim.