Codington County was hit as recently as 2026-07-06, 25 days ago. Codington County is hit in most years, and usually several times over. 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 2017-07-11 near Watertown.
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 2026-07-06, around Kranzburg. A free SwathIQ account -- hand-reviewed, invite within 24-48h -- pulls Codington 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 38 separate hail days here since 2010 -- 2.2 a year over 17 years of record. Those days carry 75 separate reports between them, two or three on a typical one. Exactly one year since 2010 passed with no reported hail day at all. The busiest single year was 2012, with 5 hail days. The last five years track the long-run rate, with 11 days since 2022.
Most hail here stays under 2 inches: only 3 of the 38 days on record passed it, 8%, the last on 2025-07-27. They land in the same month as everything else, July. 13 of the 38 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 Watertown -- 17 of the county's 38 hail days -- then Florence (7), Rauville (7), Henry (6) and Kranzburg (5). That one town is named on 45% of them. Beyond those, NOAA names Wallace, South Shore, Watertown Airport, Thomas and Waverly on more than one hail day apiece.
| Place | Hail days since 2010 | Largest stone |
|---|---|---|
| Watertown | 9 | 1.75″ |
| 4 SE Rauville | 3 | 1.75″ |
| Henry | 3 | 1.75″ |
| 3 E Watertown | 2 | 3.00″ |
| Kranzburg | 2 | 1.75″ |
The season runs May through August: 34 of the 38 hail days on record fall in those 4 months (89%). July is the single busiest month, with 10 of them (26%). That peak sits inside the window rather than at either end. Hail has also been reported in September, outside that window. Reports span 5 of the 12 calendar months; the other 7 have never produced one.
| Month | Hail days |
|---|---|
| May | 9 |
| June | 7 |
| July | 10 |
| August | 8 |
| September | 4 |
That day put 1 report on the map, the biggest 1 inch near Kranzburg. 1 hail day has already been reported this year.
| Date | Max hail | Reports |
|---|---|---|
| 2026-07-06 | 1.00″ | 1 |
| 2025-09-02 | 1.00″ | 1 |
| 2025-07-27 | 2.75″ | 4 |
| 2024-08-04 | 1.75″ | 1 |
| 2024-06-18 | 1.75″ | 2 |
| 2024-06-11 | 1.75″ | 3 |
| 2023-07-13 | 1.50″ | 6 |
| 2023-07-03 | 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 3 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 Clark County (32). Codington County takes more hail than any of them.
Hamlin County · Grant County · Clark 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, Codington County, South Dakota only. Radar-indicated and observation-based -- informational only, not a guarantee of damage or a valid claim.