The most recent reported hail day was 2026-04-14, 108 days ago. Vernon County is hit in most years. The largest stone on record here is 2.75 inches, a baseball and 2.8 times the National Weather Service's 1 inch severe criterion, reported on 2026-04-14 near Westby.
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 Westby. A free SwathIQ account -- hand-reviewed, invite within 24-48h -- pulls Vernon 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 43 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 2021, with 3 hail days. The last five years have run hotter than the long-run rate: 8 days since 2022, against 0.9 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 2026-04-14. Those big days do not follow the county's usual calendar: most of them fall in April, not July. Golf-ball size is rarer still: 1.75 inches or more on 4 of the 19 days.
Across the whole of Wisconsin, see the Wisconsin hail map and history.
Reports cluster nearest Stoddard -- 5 of the county's 19 hail days -- then Viroqua (5), Westby (4), Genoa (4) and Hillsboro (3). Beyond those, NOAA names La Farge and Valley on more than one hail day apiece.
| Place | Hail days since 2010 | Largest stone |
|---|---|---|
| Westby | 4 | 2.75″ |
| Genoa | 2 | 1.75″ |
| Stoddard | 2 | 1.00″ |
| Valley | 2 | 1.00″ |
| Viroqua | 2 | 1.00″ |
The season runs March through July: 16 of the 19 hail days on record fall in those 5 months (84%). July is the single busiest month, with 5 of them (26%). That peak closes the window: the season builds all the way to its worst month and then stops. Hail has also been reported in September, outside that window. Reports span 6 of the 12 calendar months; the other 6 have never produced one.
| Month | Hail days |
|---|---|
| March | 1 |
| April | 3 |
| May | 4 |
| June | 3 |
| July | 5 |
| September | 3 |
That day put 10 reports on the map, the biggest 2.75 inches near Westby. 1 hail day has already been reported this year.
| Date | Max hail | Reports |
|---|---|---|
| 2026-04-14 | 2.75″ | 10 |
| 2025-09-22 | 1.00″ | 1 |
| 2025-05-15 | 1.25″ | 3 |
| 2024-09-21 | 1.00″ | 2 |
| 2024-06-24 | 1.00″ | 1 |
| 2023-07-13 | 1.75″ | 1 |
| 2022-06-15 | 1.00″ | 1 |
| 2022-05-19 | 1.25″ | 2 |
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 2.75 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: La Crosse County (25 hail days), Monroe County (25) and Richland County (15). Vernon County sits in between.
La Crosse County · Monroe County · Richland 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, Vernon County, Wisconsin only. Radar-indicated and observation-based -- informational only, not a guarantee of damage or a valid claim.