Oconto County was hit as recently as 2026-06-24, 37 days ago. Oconto County is hit in most years. 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 2015-08-02 near Pensaukee.
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 Krakow. A free SwathIQ account -- hand-reviewed, invite within 24-48h -- pulls Oconto 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. They carry 34 reports in total: most hail days here are logged from a single spot. 4 of those 17 years produced none at all. The busiest single year was 2023, with 2 hail days. The last five years track the long-run rate, with 6 days since 2022.
2 of the 19 days reached 2 inches or more -- 11%, or about one hail day in 10, the last on 2015-08-02. They land in the same month as everything else, July. Golf-ball size is rarer still: 1.75 inches or more on 3 of the 19 days.
Across the whole of Wisconsin, see the Wisconsin hail map and history.
Reports cluster nearest Mountain -- 5 of the county's 19 hail days -- then Oconto (4), Sobieski (3), Little Suamico (2) and Abrams (2). Beyond those, NOAA names Suring and Oconto Falls on more than one hail day apiece.
| Place | Hail days since 2010 | Largest stone |
|---|---|---|
| Oconto | 4 | 1.00″ |
| Abrams | 2 | 2.00″ |
| Mountain | 2 | 1.50″ |
| Oconto Falls | 2 | 1.25″ |
| Pensaukee | 1 | 3.00″ |
The season runs April through August: 16 of the 19 hail days on record fall in those 5 months (84%). July is the single busiest month, with 6 of them (32%). That peak sits inside the window rather than at either end. 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 | 2 |
| May | 2 |
| June | 3 |
| July | 6 |
| August | 3 |
| September | 2 |
| October | 1 |
That day put 1 report on the map, the biggest 1 inch near Krakow. 1 hail day has already been reported this year.
| Date | Max hail | Reports |
|---|---|---|
| 2026-06-24 | 1.00″ | 1 |
| 2025-07-08 | 1.00″ | 1 |
| 2024-06-24 | 1.50″ | 3 |
| 2023-10-24 | 1.00″ | 1 |
| 2023-07-28 | 1.50″ | 1 |
| 2022-05-12 | 1.50″ | 3 |
| 2021-04-27 | 1.00″ | 1 |
| 2020-09-26 | 1.25″ | 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: Shawano County (15 hail days), Marinette County (21) and Brown County (16). Oconto County sits in between.
Shawano County · Marinette County · Brown 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, Oconto County, Wisconsin only. Radar-indicated and observation-based -- informational only, not a guarantee of damage or a valid claim.