The most recent reported hail day was 2026-04-17, 105 days ago. Winona County has recorded hail in nearly every year on the archive. 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 2023-07-13 near Altura.
Colored swath = NOAA MRMS radar-estimated hail size; dots = NOAA SPC reports in Minnesota. Radar-indicated, not a guarantee of damage.
The last hail here fell on 2026-04-17, around Saint Charles. A free SwathIQ account -- hand-reviewed, invite within 24-48h -- pulls Winona 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 33 separate hail days here since 2010 -- 1.9 a year over 17 years of record. Those days carry 98 separate reports between them, two or three on a typical one. Exactly one year since 2010 passed with no reported hail day at all. The busiest single year was 2023, with 3 hail days. The last five years track the long-run rate, with 9 days since 2022.
6 of the 33 days reached 2 inches or more -- 18%, or about one hail day in 6, the last on 2024-07-13. Those big days do not follow the county's usual calendar: most of them fall in June, not April. Golf-ball size is rarer still: 1.75 inches or more on 7 of the 33 days.
Across the whole of Minnesota, see the Minnesota hail map and history.
Reports cluster nearest Winona -- 10 of the county's 33 hail days -- then Nodine (7), Goodview (6), Lewiston (6) and Pickwick (6). Beyond those, NOAA names Rollingstone, Saint Charles, St. Charles, Altura, Bethany, Wilson, Minnesota City, Ridgeway and Utica on more than one hail day apiece.
| Place | Hail days since 2010 | Largest stone |
|---|---|---|
| Winona | 6 | 2.00″ |
| Nodine | 5 | 1.75″ |
| Goodview | 4 | 2.75″ |
| Lewiston | 4 | 1.00″ |
| 5 E Pickwick | 3 | 2.00″ |
The season runs April through August: 28 of the 33 hail days on record fall in those 5 months (85%). April is the single busiest month, with 7 of them (21%). That peak opens the window: the season starts at its worst and eases off from there. Hail has also been reported in September and October, outside that window. Reports span 7 of the 12 calendar months; the other 5 have never produced one.
| Month | Hail days |
|---|---|
| April | 7 |
| May | 6 |
| June | 6 |
| July | 5 |
| August | 4 |
| September | 3 |
| October | 2 |
That day put 4 reports on the map, the biggest 1.5 inches near Saint Charles. 1 hail day has already been reported this year.
| Date | Max hail | Reports |
|---|---|---|
| 2026-04-17 | 1.50″ | 4 |
| 2025-05-15 | 1.00″ | 5 |
| 2024-07-31 | 1.00″ | 1 |
| 2024-07-13 | 2.00″ | 8 |
| 2023-10-23 | 1.50″ | 1 |
| 2023-07-13 | 3.00″ | 14 |
| 2023-04-04 | 1.00″ | 1 |
| 2022-05-19 | 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 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, over the state line included: Houston County (15 hail days), Fillmore County (25), Wabasha County (17), Buffalo County, Wisconsin (19) and Trempealeau County, Wisconsin (43). Winona County sits in between.
Houston County · Fillmore County · Wabasha County · Buffalo County, Wisconsin · Trempealeau County, Wisconsin
Back to the Minnesota hail map or the U.S. hail map.
Data & method: NOAA/NWS Storm Prediction Center reports + NOAA MRMS MESH radar, Winona County, Minnesota only. Radar-indicated and observation-based -- informational only, not a guarantee of damage or a valid claim.