Brown County was hit as recently as 2026-06-24, 37 days ago. Brown 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 2021-09-07 near Wrightstown.
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 2026-06-24, around Pulaski. A free SwathIQ account -- hand-reviewed, invite within 24-48h -- pulls Brown 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 16 separate hail days here since 2010 -- 0.9 a year over 17 years of record. Those days carry 41 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 2026, with 3 hail days. The last five years have run hotter than the long-run rate: 7 days since 2022, against 0.8 a year before that.
2 of the 16 days reached 2 inches or more -- 12%, or about one hail day in 8, the last on 2021-09-07. Those big days do not follow the county's usual calendar: most of them fall in July, not August. 6 of the 16 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 Green Bay -- 6 of the county's 16 hail days -- then Howard (4), Wrightstown (3), De Pere (3) and Ashwaubenon (2). Beyond those, NOAA names Greenleaf, Pulaski, Suamico and Allouez on more than one hail day apiece.
| Place | Hail days since 2010 | Largest stone |
|---|---|---|
| Wrightstown | 3 | 2.50″ |
| Howard | 2 | 2.50″ |
| 2 N Ashwaubenon | 2 | 1.75″ |
| Pulaski | 2 | 1.75″ |
| Green Bay | 2 | 1.50″ |
The season runs April through August: 13 of the 16 hail days on record fall in those 5 months (81%). August is the single busiest month, with 5 of them (31%). That peak closes the window: the season builds all the way to its worst month and then stops. Hail has also been reported in March and September, outside that window. Reports span 7 of the 12 calendar months; the other 5 have never produced one.
| Month | Hail days |
|---|---|
| March | 1 |
| April | 2 |
| May | 2 |
| June | 3 |
| July | 1 |
| August | 5 |
| September | 2 |
That day put 5 reports on the map, the biggest 1.75 inches near Pulaski. 3 hail days have already been reported this year.
| Date | Max hail | Reports |
|---|---|---|
| 2026-06-24 | 1.75″ | 5 |
| 2026-04-13 | 1.25″ | 3 |
| 2026-03-30 | 1.75″ | 5 |
| 2025-05-30 | 1.00″ | 1 |
| 2024-06-24 | 1.00″ | 1 |
| 2023-09-05 | 1.00″ | 1 |
| 2022-04-12 | 1.00″ | 3 |
| 2021-09-07 | 2.50″ | 5 |
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: Outagamie County (19 hail days), Oconto County (19) and Winnebago County (17). Every one of them takes more hail than Brown County.
Outagamie County · Oconto County · Winnebago 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, Brown County, Wisconsin only. Radar-indicated and observation-based -- informational only, not a guarantee of damage or a valid claim.