The most recent reported hail day was 2024-07-30 -- 2 years ago, with nothing reported since. Davison County is hit in most years. The largest stone on record here is 2.5 inches, a tennis ball and 2.5 times the National Weather Service's 1 inch severe criterion, reported on 2012-05-05 near Mitchell.
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 2024-07-30, around Mitchell. A free SwathIQ account -- hand-reviewed, invite within 24-48h -- pulls Davison 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 19 separate hail days here since 2010 -- 1.1 a year over 17 years of record. Those days carry 40 separate reports between them, two or three on a typical one. 6 of those 17 years produced none at all. The busiest single year was 2017, with 3 hail days. The last five years have been quieter than the long run: 3 days since 2022, against 1.3 a year before that.
Most hail here stays under 2 inches: only 1 of the 19 days on record passed it, 5%, the last on 2012-05-05. Those big days do not follow the county's usual calendar: most of them fall in May, not June. Golf-ball size is rarer still: 1.75 inches or more on 4 of the 19 days.
Across the whole of South Dakota, see the South Dakota hail map and history.
Reports cluster nearest Mitchell -- 12 of the county's 19 hail days -- then Mount Vernon (8), Ethan (6) and Loomis (3). That one town is named on 63% of them.
| Place | Hail days since 2010 | Largest stone |
|---|---|---|
| Mitchell | 4 | 2.50″ |
| Mount Vernon | 2 | 1.75″ |
| 9 WNW Ethan | 2 | 1.50″ |
| 6 W Mitchell | 1 | 2.50″ |
| 1 W Mitchell | 1 | 1.75″ |
The season runs May through August: 16 of the 19 hail days on record fall in those 4 months (84%). June is the single busiest month, with 5 of them (26%). That peak sits inside the window rather than at either end. Hail has also been reported in April and September, outside that window. Reports span 6 of the 12 calendar months; the other 6 have never produced one.
| Month | Hail days |
|---|---|
| April | 2 |
| May | 3 |
| June | 5 |
| July | 5 |
| August | 3 |
| September | 1 |
That day put 2 reports on the map, the biggest 1.25 inches near Mitchell. No hail day has been reported here yet this year.
| Date | Max hail | Reports |
|---|---|---|
| 2024-07-30 | 1.25″ | 2 |
| 2023-08-10 | 1.00″ | 2 |
| 2023-07-11 | 1.00″ | 1 |
| 2021-08-30 | 1.00″ | 2 |
| 2020-06-08 | 1.75″ | 1 |
| 2019-07-12 | 1.00″ | 1 |
| 2019-06-26 | 1.00″ | 1 |
| 2017-09-22 | 1.00″ | 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 2.5 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: Hanson County (15 hail days), Aurora County (31) and Sanborn County (17). Davison County sits in between.
Hanson County · Aurora County · Sanborn 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, Davison County, South Dakota only. Radar-indicated and observation-based -- informational only, not a guarantee of damage or a valid claim.