Mille Lacs County was hit as recently as 2026-07-04, 27 days ago. Mille Lacs 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 2014-09-03 near Onamia.
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 2026-07-04, around Isle. A free SwathIQ account -- hand-reviewed, invite within 24-48h -- pulls Mille Lacs 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 22 separate hail days here since 2010 -- 1.3 a year over 17 years of record. They carry 34 reports in total: most hail days here are logged from a single spot. 5 of those 17 years produced none at all. The busiest single year was 2017, with 4 hail days. The last five years track the long-run rate, with 6 days since 2022.
4 of the 22 days reached 2 inches or more -- 18%, or about one hail day in 6, the last on 2017-07-09. They land in the same month as everything else, May. Golf-ball size is rarer still: 1.75 inches or more on 5 of the 22 days.
Across the whole of Minnesota, see the Minnesota hail map and history.
Reports cluster nearest Onamia -- 5 of the county's 22 hail days -- then Milaca (4), Princeton (4), Foreston (3) and Vineland (3). Beyond those, NOAA names Isle, Pease and Wahkon on more than one hail day apiece.
| Place | Hail days since 2010 | Largest stone |
|---|---|---|
| 2 E Pease | 2 | 2.00″ |
| Onamia | 2 | 2.00″ |
| 3 Nnw Vineland | 2 | 1.75″ |
| Princeton | 2 | 1.25″ |
| Milaca | 2 | 1.00″ |
The season runs May through September: 21 of the 22 hail days on record fall in those 5 months (95%). May is the single busiest month, with 6 of them (27%). That peak opens the window: the season starts at its worst and eases off from there. Hail has also been reported in April, outside that window. Reports span 6 of the 12 calendar months; the other 6 have never produced one.
| Month | Hail days |
|---|---|
| April | 1 |
| May | 6 |
| June | 3 |
| July | 6 |
| August | 2 |
| September | 4 |
That day put 1 report on the map, the biggest 1.25 inches near Isle. 2 hail days have already been reported this year.
| Date | Max hail | Reports |
|---|---|---|
| 2026-07-04 | 1.25″ | 1 |
| 2026-06-19 | 1.00″ | 2 |
| 2025-04-17 | 1.00″ | 1 |
| 2022-05-12 | 1.25″ | 2 |
| 2022-05-11 | 1.00″ | 1 |
| 2022-05-09 | 1.25″ | 1 |
| 2021-09-16 | 1.00″ | 2 |
| 2021-08-28 | 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 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: Kanabec County (22 hail days), Benton County (16) and Isanti County (14). Mille Lacs County sits in between.
Kanabec County · Benton County · Isanti County
Back to the Minnesota hail map or the U.S. hail map.
Data & method: NOAA/NWS Storm Prediction Center reports + NOAA MRMS MESH radar, Mille Lacs County, Minnesota only. Radar-indicated and observation-based -- informational only, not a guarantee of damage or a valid claim.