The most recent reported hail day was 2025-07-26, 370 days ago. Bennett County is hit in most years, and usually several times over. The largest stone on record here is 4 inches, a grapefruit and 4 times the National Weather Service's 1 inch severe criterion, reported on 2020-07-10 near Swett.
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 2025-07-26, around Vetal. A free SwathIQ account -- hand-reviewed, invite within 24-48h -- pulls Bennett 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 50 separate hail days here since 2010 -- 2.9 a year over 17 years of record. They carry 80 reports in total: most hail days here are logged from a single spot. Exactly one year since 2010 passed with no reported hail day at all. The busiest single year was 2020, with 6 hail days. The last five years track the long-run rate, with 13 days since 2022.
10 of the 50 days reached 2 inches or more -- 20%, or about one hail day in 5, the last on 2024-07-03. They land in the same month as everything else, June. 18 of the 50 days reached golf-ball size, 1.75 inches or bigger.
Across the whole of South Dakota, see the South Dakota hail map and history.
Reports cluster nearest Martin -- 19 of the county's 50 hail days -- then Vetal (16), Tuthill (10), Swett (7) and Harrington (6). Beyond those, NOAA names Allen and Batesland on more than one hail day apiece.
| Place | Hail days since 2010 | Largest stone |
|---|---|---|
| 2 WSW Swett | 3 | 1.75″ |
| 8 WSW Swett | 2 | 2.75″ |
| 1 Se Vetal | 2 | 2.50″ |
| 5 W Martin | 2 | 2.00″ |
| 11 S Harrington | 2 | 1.75″ |
The season runs June through August: 43 of the 50 hail days on record fall in those 3 months (86%). June is the single busiest month, with 17 of them (34%). That peak opens the window: the season starts at its worst and eases off from there. Hail has also been reported in May and September, outside that window. Reports span 5 of the 12 calendar months; the other 7 have never produced one.
| Month | Hail days |
|---|---|
| May | 5 |
| June | 17 |
| July | 16 |
| August | 10 |
| September | 2 |
That day put 1 report on the map, the biggest 1.75 inches near Vetal. No hail day has been reported here yet this year.
| Date | Max hail | Reports |
|---|---|---|
| 2025-07-26 | 1.75″ | 1 |
| 2024-07-28 | 1.00″ | 1 |
| 2024-07-03 | 2.75″ | 3 |
| 2024-06-25 | 2.75″ | 4 |
| 2024-06-01 | 2.00″ | 2 |
| 2023-08-12 | 1.00″ | 1 |
| 2023-08-08 | 1.75″ | 1 |
| 2023-08-01 | 1.75″ | 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 4 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: Jackson County (63 hail days), Oglala Lakota County (53) and Todd County (58). Every one of them takes more hail than Bennett County.
Jackson County · Oglala Lakota County · Todd 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, Bennett County, South Dakota only. Radar-indicated and observation-based -- informational only, not a guarantee of damage or a valid claim.