Davison County, South Dakota Hail Map & History
Davison County was hit as recently as 2026-09-04, 10 days ago. 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 2026-09-04, around Ethan. 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.
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 ->How often it hails in Davison County
NOAA's Storm Prediction Center has logged 20 separate hail days here since 2010 -- 1.2 a year over 17 years of record. Those days carry 42 separate reports between them, two or three on a typical one. 5 of those 17 years produced none at all. The busiest single year was 2017, with 3 hail days. The last five years track the long-run rate, with 4 days since 2022.
Most hail here stays under 2 inches: only 1 of the 20 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 20 days.
Across the whole of South Dakota, see the South Dakota hail map and history.
Hardest-hit places in Davison County
Reports cluster nearest Mitchell -- 12 of the county's 20 hail days -- then Mount Vernon (8), Ethan (7) and Loomis (3). That one town is named on 60% 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″ |
When it hails in Davison County
The season runs May through August: 16 of the 20 hail days on record fall in those 4 months (80%). June is the single busiest month, with 5 of them (25%). 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 | 2 |
Recent Davison County hail days
That day put 2 reports on the map, the biggest 1.5 inches near Ethan. 1 hail day has already been reported this year.
| Date | Max hail | Reports |
|---|---|---|
| 2026-09-04 | 1.50″ | 2 |
| 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 |
How to read the Davison 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 2.5 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: 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.
FAQ
How often does it hail in Davison County, South Dakota?
When is hail season in Davison County?
How big does hail get in Davison County?
When was the last hail in Davison County?
Is the Davison County hail map free?
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.