Polk County was hit as recently as 2026-06-19, 42 days ago. Polk 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 2014-07-26 near McKinley.
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 2026-06-19, around Milltown. A free SwathIQ account -- hand-reviewed, invite within 24-48h -- pulls Polk 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 17 separate hail days here since 2010 -- 1.0 a year over 17 years of record. They carry 27 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 2024, with 2 hail days. The last five years track the long-run rate, with 6 days since 2022.
3 of the 17 days reached 2 inches or more -- 18%, or about one hail day in 6, the last on 2024-07-30. They land in the same month as everything else, July. Golf-ball size is rarer still: 1.75 inches or more on 4 of the 17 days.
Across the whole of Wisconsin, see the Wisconsin hail map and history.
Reports cluster nearest Amery -- 4 of the county's 17 hail days -- then Osceola (3), McKinley (2), Balsam Lake (2) and Nye (2).
| Place | Hail days since 2010 | Largest stone |
|---|---|---|
| 1 Se McKinley | 1 | 2.75″ |
| 2 S Amery | 1 | 2.50″ |
| 3 Nnw McKinley | 1 | 2.50″ |
| 2 W Clear Lake | 1 | 2.00″ |
| 2 Sw Range | 1 | 1.75″ |
The season runs May through August: 14 of the 17 hail days on record fall in those 4 months (82%). July is the single busiest month, with 6 of them (35%). That peak sits inside the window rather than at either end. Hail has also been reported in April and September, outside that window. Reports span 6 of the 12 calendar months; the other 6 have never produced one.
| Month | Hail days |
|---|---|
| April | 1 |
| May | 4 |
| June | 1 |
| July | 6 |
| August | 3 |
| September | 2 |
That day put 1 report on the map, the biggest 1 inch near Milltown. 1 hail day has already been reported this year.
| Date | Max hail | Reports |
|---|---|---|
| 2026-06-19 | 1.00″ | 1 |
| 2025-04-17 | 1.00″ | 1 |
| 2024-09-19 | 1.25″ | 2 |
| 2024-07-30 | 2.00″ | 3 |
| 2023-07-27 | 1.00″ | 1 |
| 2022-05-09 | 1.50″ | 2 |
| 2021-05-15 | 1.00″ | 2 |
| 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 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, over the state line included: St. Croix County (29 hail days), Barron County (24), Burnett County (22) and Chisago County, Minnesota (15). Polk County sits in between.
St. Croix County · Barron County · Burnett County · Chisago County, Minnesota
Back to the Wisconsin hail map or the U.S. hail map.
Data & method: NOAA/NWS Storm Prediction Center reports + NOAA MRMS MESH radar, Polk County, Wisconsin only. Radar-indicated and observation-based -- informational only, not a guarantee of damage or a valid claim.