The most recent reported hail day was 2025-07-17, 379 days ago. Haakon County is hit in most years, often more than once. 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 2016-05-25 near Grindstone.
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 2025-07-17, around Milesville. A free SwathIQ account -- hand-reviewed, invite within 24-48h -- pulls Haakon 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 45 separate hail days here since 2010 -- 2.6 a year over 17 years of record. They carry 73 reports in total: most hail days here are logged from a single spot. 3 of those 17 years produced none at all. One year dominates the record: 2020 alone produced 9 of the 45 days. The last five years track the long-run rate, with 11 days since 2022.
6 of the 45 days reached 2 inches or more -- 13%, or about one hail day in 8, the last on 2024-08-21. Those big days do not follow the county's usual calendar: most of them fall in August, not July. 16 of the 45 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 Philip -- 19 of the county's 45 hail days -- then Kirley (12), Milesville (9), Ottumwa (6) and Midland (6). That one town is named on 42% of them. Beyond those, NOAA names Billsburg on more than one hail day apiece.
| Place | Hail days since 2010 | Largest stone |
|---|---|---|
| 5 NE Milesville | 4 | 1.00″ |
| 2 SW Kirley | 3 | 1.25″ |
| 9 Ssw Ottumwa | 2 | 3.00″ |
| 8 ESE Ottumwa | 2 | 2.00″ |
| 9 Ne Milesville | 2 | 1.75″ |
The season runs June through August: 36 of the 45 hail days on record fall in those 3 months (80%). July is the single busiest month, with 13 of them (29%). That peak sits inside the window rather than at either end. 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 | 6 |
| June | 11 |
| July | 13 |
| August | 12 |
| September | 2 |
That day put 1 report on the map, the biggest 1 inch near Milesville. No hail day has been reported here yet this year.
| Date | Max hail | Reports |
|---|---|---|
| 2025-07-17 | 1.00″ | 1 |
| 2024-08-21 | 2.00″ | 1 |
| 2024-08-17 | 1.00″ | 1 |
| 2024-07-30 | 1.50″ | 1 |
| 2024-07-29 | 1.25″ | 2 |
| 2023-09-20 | 1.75″ | 1 |
| 2023-06-27 | 1.00″ | 1 |
| 2023-05-06 | 1.50″ | 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: Jackson County (63 hail days), Stanley County (46) and Jones County (40). Haakon County sits in between.
Jackson County · Stanley County · Jones 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, Haakon County, South Dakota only. Radar-indicated and observation-based -- informational only, not a guarantee of damage or a valid claim.