Campbell County, South Dakota Hail Map & History
Campbell County was hit as recently as 2026-08-24, 21 days ago. Campbell County is hit in most years. The largest stone on record here is 3 inches, a teacup and 3 times the National Weather Service's 1 inch severe criterion, reported on 2026-08-24 near Mound City.
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 2026-08-24, around Mound City. A free SwathIQ account -- hand-reviewed, invite within 24-48h -- pulls Campbell 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 ->How often it hails in Campbell County
NOAA's Storm Prediction Center has logged 30 separate hail days here since 2010 -- 1.8 a year over 17 years of record. They carry 47 reports in total: most hail days here are logged from a single spot. 4 of those 17 years produced none at all. The busiest single year was 2016, with 5 hail days. The last five years have been quieter than the long run: 4 days since 2022, against 2.2 a year before that.
Most hail here stays under 2 inches: only 2 of the 30 days on record passed it, 7%, the last on 2026-08-24. They land in the same month as everything else, June. 12 of the 30 days reached golf-ball size, 1.75 inches or bigger.
Across the whole of South Dakota, see the South Dakota hail map and history.
Hardest-hit places in Campbell County
Reports cluster nearest Herreid -- 8 of the county's 30 hail days -- then Mound City (5), Eureka (5), Pollock (5) and Artas (4). Beyond those, NOAA names Glenham and Java on more than one hail day apiece.
| Place | Hail days since 2010 | Largest stone |
|---|---|---|
| Herreid | 4 | 2.00″ |
| Pollock | 3 | 1.00″ |
| 3 NE Mound City | 2 | 1.75″ |
| Mound City | 2 | 1.50″ |
| 6 Ne Glenham | 2 | 1.25″ |
When it hails in Campbell County
The season runs June through August: 24 of the 30 hail days on record fall in those 3 months (80%). June is the single busiest month, with 9 of them (30%). That peak opens the window: the season starts at its worst and eases off from there. Hail has also been reported in April, May and September, outside that window. Reports span 6 of the 12 calendar months; the other 6 have never produced one.
| Month | Hail days |
|---|---|
| April | 1 |
| May | 3 |
| June | 9 |
| July | 6 |
| August | 9 |
| September | 2 |
Recent Campbell County hail days
That day put 3 reports on the map, the biggest 3 inches near Mound City. 2 hail days have already been reported this year.
| Date | Max hail | Reports |
|---|---|---|
| 2026-08-24 | 3.00″ | 3 |
| 2026-08-08 | 1.50″ | 3 |
| 2024-08-28 | 1.75″ | 3 |
| 2022-06-23 | 2.00″ | 1 |
| 2020-06-07 | 1.75″ | 1 |
| 2019-07-16 | 1.25″ | 2 |
| 2018-09-09 | 1.00″ | 2 |
| 2018-06-10 | 1.00″ | 1 |
How to read the Campbell County map
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 3 inches, which is the purple band. Look up a street address with the hail history by address tool.
Nearby counties
The nearest counties with a page of their own, over the state line included: Walworth County (41 hail days), McPherson County (43), Edmunds County (43), Emmons County, North Dakota (30) and McIntosh County, North Dakota (30). Campbell County sits in between.
Walworth County · McPherson County · Edmunds County · Emmons County, North Dakota · McIntosh County, North Dakota
Back to the South Dakota hail map or the U.S. hail map.
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Data & method: NOAA/NWS Storm Prediction Center reports + NOAA MRMS MESH radar, Campbell County, South Dakota only. Radar-indicated and observation-based -- informational only, not a guarantee of damage or a valid claim.