The most recent reported hail day was 2026-04-14, 108 days ago. Dane County is hit in most years, and usually several times over. The largest stone on record here is 4 inches, a grapefruit and 4 times the National Weather Service's 1 inch severe criterion, reported on 2026-04-14 near Maple Bluff.
Colored swath = NOAA MRMS radar-estimated hail size; dots = NOAA SPC reports in Wisconsin. Radar-indicated, not a guarantee of damage.
The last hail here fell on 2026-04-14, around Maple Bluff. A free SwathIQ account -- hand-reviewed, invite within 24-48h -- pulls Dane 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 52 separate hail days here since 2010 -- 3.1 a year over 17 years of record. Those days carry 287 separate reports between them, better than three on a typical one. No year since 2010 has gone by without at least one. The busiest single year was 2017, with 7 hail days. The last five years have run hotter than the long-run rate: 20 days since 2022, against 2.7 a year before that.
10 of the 52 days reached 2 inches or more -- 19%, or about one hail day in 5, the last on 2026-04-14. They land in the same month as everything else, April. 14 of the 52 days reached golf-ball size, 1.75 inches or bigger.
Across the whole of Wisconsin, see the Wisconsin hail map and history.
Reports cluster nearest Middleton -- 14 of the county's 52 hail days -- then Cross Plains (12), Sun Prairie (11), Monona (10) and Maple Bluff (8). Beyond those, NOAA names Madison, Verona, Cottage Grove, Edgerton, De Forest, Mcfarland, Oregon, Mount Horeb and Shorewood Hills on more than one hail day apiece.
| Place | Hail days since 2010 | Largest stone |
|---|---|---|
| Madison | 6 | 2.00″ |
| Middleton | 5 | 2.75″ |
| De Forest | 5 | 2.00″ |
| 4 NE Cross Plains | 5 | 1.50″ |
| 1 E Maple Bluff | 4 | 3.00″ |
The season runs March through July: 42 of the 52 hail days on record fall in those 5 months (81%). April is the single busiest month, with 12 of them (23%). That peak sits inside the window rather than at either end. January and December are the only months that have never produced a reported hail day.
| Month | Hail days |
|---|---|
| February | 1 |
| March | 1 |
| April | 12 |
| May | 11 |
| June | 11 |
| July | 7 |
| August | 1 |
| September | 6 |
| October | 1 |
| November | 1 |
That day put 74 reports on the map, the biggest 4 inches near Maple Bluff. 2 hail days have already been reported this year.
| Date | Max hail | Reports |
|---|---|---|
| 2026-04-14 | 4.00″ | 74 |
| 2026-04-13 | 1.25″ | 2 |
| 2025-08-16 | 1.00″ | 2 |
| 2025-05-15 | 2.25″ | 30 |
| 2025-04-18 | 2.50″ | 7 |
| 2025-04-17 | 1.25″ | 10 |
| 2024-07-14 | 1.50″ | 1 |
| 2024-06-22 | 2.00″ | 9 |
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 4 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: Columbia County (20 hail days), Green County (18) and Jefferson County (24). Dane County takes more hail than any of them.
Columbia County · Green County · Jefferson County
Back to the Wisconsin hail map or the U.S. hail map.
Data & method: NOAA/NWS Storm Prediction Center reports + NOAA MRMS MESH radar, Dane County, Wisconsin only. Radar-indicated and observation-based -- informational only, not a guarantee of damage or a valid claim.