Harding County was hit as recently as 2026-07-30, 1 day ago. Harding County is hit in most years, and usually several times over. The largest stone on record here is 4.25 inches and 4.2 times the National Weather Service's 1 inch severe criterion, reported on 2011-07-22 near Camp Crook.
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 2026-07-30, around Ralph. A free SwathIQ account -- hand-reviewed, invite within 24-48h -- pulls Harding County addresses inside a hail swath above your size threshold into a door-knock list you can export, scoped to your approved markets.
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See call-center options ->NOAA's Storm Prediction Center has logged 81 separate hail days here since 2010 -- 4.8 a year over 17 years of record. Those days carry 193 separate reports between them, two or three on a typical one. No year since 2010 has gone by without at least one. The busiest single year was 2016, with 9 hail days. The last five years track the long-run rate, with 18 days since 2022.
17 of the 81 days reached 2 inches or more -- 21%, or about one hail day in 5, the last on 2026-06-27. They land in the same month as everything else, July. 38 of the 81 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 Ludlow -- 20 of the county's 81 hail days -- then Reva (20), Ladner (19), Camp Crook (17) and Buffalo (15). Beyond those, NOAA names Ralph, Harding and Redig on more than one hail day apiece.
| Place | Hail days since 2010 | Largest stone |
|---|---|---|
| 3 SSE Harding | 8 | 1.75″ |
| 8 SSE Ralph | 5 | 2.50″ |
| Buffalo | 4 | 1.75″ |
| Camp Crook | 3 | 2.75″ |
| 10 Ssw Reva | 3 | 2.25″ |
The season runs June through July: 65 of the 81 hail days on record fall in those 2 months (80%). July is the single busiest month, with 37 of them (46%). Hail has also been reported in May, 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 | 2 |
| June | 28 |
| July | 37 |
| August | 12 |
| September | 2 |
That day put 1 report on the map, the biggest 1 inch near Ralph. 3 hail days have already been reported this year.
| Date | Max hail | Reports |
|---|---|---|
| 2026-07-30 | 1.00″ | 1 |
| 2026-06-27 | 2.00″ | 3 |
| 2026-06-07 | 3.25″ | 5 |
| 2025-08-01 | 1.75″ | 2 |
| 2025-07-20 | 1.00″ | 1 |
| 2025-07-09 | 1.50″ | 1 |
| 2025-06-25 | 1.50″ | 1 |
| 2025-06-20 | 3.60″ | 8 |
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 4.25 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, over the state line included: Perkins County (81 hail days), Butte County (74), Meade County (151), Bowman County, North Dakota (37) and Adams County, North Dakota (42). Harding County sits in between.
Perkins County · Butte County · Meade County · Bowman County, North Dakota · Adams County, North Dakota
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, Harding County, South Dakota only. Radar-indicated and observation-based -- informational only, not a guarantee of damage or a valid claim.