Lake County, South Dakota Hail Map & History
Lake County was hit as recently as 2026-08-24, 21 days ago. Lake County has recorded hail in nearly every year on the archive. 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 2022-10-23 near Orland.
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 Ramona. A free SwathIQ account -- hand-reviewed, invite within 24-48h -- pulls Lake 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 Lake County
NOAA's Storm Prediction Center has logged 28 separate hail days here since 2010 -- 1.6 a year over 17 years of record. They carry 50 reports in total: most hail days here are logged from a single spot. 2 of those 17 years produced none at all. The busiest single year was 2019, with 4 hail days. The last five years track the long-run rate, with 7 days since 2022.
Most hail here stays under 2 inches: only 1 of the 28 days on record passed it, 4%, the last on 2022-10-23. Those big days do not follow the county's usual calendar: most of them fall in October, not June. 10 of the 28 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 Lake County
Reports cluster nearest Madison -- 13 of the county's 28 hail days -- then Ramona (7), Winfred (7), Nunda (4) and Orland (3). That one town is named on 46% of them. Beyond those, NOAA names Wentworth and Chester on more than one hail day apiece.
| Place | Hail days since 2010 | Largest stone |
|---|---|---|
| Madison | 7 | 1.75″ |
| Chester | 2 | 1.75″ |
| Orland | 1 | 2.00″ |
| 2 E Wentworth | 1 | 1.75″ |
| 2 Sse Winfred | 1 | 1.75″ |
When it hails in Lake County
The season runs May through August: 23 of the 28 hail days on record fall in those 4 months (82%). June is the single busiest month, with 7 of them (25%). That peak sits inside the window rather than at either end. Hail has also been reported in April, September and October, outside that window. Reports span 7 of the 12 calendar months; the other 5 have never produced one.
| Month | Hail days |
|---|---|
| April | 2 |
| May | 2 |
| June | 7 |
| July | 7 |
| August | 7 |
| September | 2 |
| October | 1 |
Recent Lake County hail days
That day put 1 report on the map, the biggest 1 inch near Ramona. 1 hail day has already been reported this year.
| Date | Max hail | Reports |
|---|---|---|
| 2026-08-24 | 1.00″ | 1 |
| 2024-04-26 | 1.00″ | 1 |
| 2023-08-10 | 1.25″ | 2 |
| 2023-07-13 | 1.00″ | 1 |
| 2022-10-23 | 2.00″ | 6 |
| 2022-05-30 | 1.00″ | 1 |
| 2022-04-28 | 1.00″ | 1 |
| 2021-08-05 | 1.75″ | 3 |
How to read the Lake 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 2 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: Moody County (18 hail days), Miner County (14) and McCook County (36). Lake County sits in between.
Moody County · Miner County · McCook County
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, Lake County, South Dakota only. Radar-indicated and observation-based -- informational only, not a guarantee of damage or a valid claim.