Cass County, Minnesota Hail Map & History
Cass County was hit as recently as 2026-08-20, 25 days ago. Cass County is hit in most years, and usually several times over. 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 2021-07-26 near Bena.
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 2026-08-20, around Boy River. A free SwathIQ account -- hand-reviewed, invite within 24-48h -- pulls Cass 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 ->How often it hails in Cass County
NOAA's Storm Prediction Center has logged 47 separate hail days here since 2010 -- 2.8 a year over 17 years of record. Those days carry 105 separate reports between them, two or three on a typical one. No year since 2010 has gone by without at least one. The busiest single year was 2022, with 7 hail days. The last five years have run hotter than the long-run rate: 19 days since 2022, against 2.3 a year before that.
8 of the 47 days reached 2 inches or more -- 17%, or about one hail day in 6, the last on 2024-08-03. They land in the same month as everything else, June. 19 of the 47 days reached golf-ball size, 1.75 inches or bigger.
Across the whole of Minnesota, see the Minnesota hail map and history.
Hardest-hit places in Cass County
Reports cluster nearest Lake Shore -- 8 of the county's 47 hail days -- then Backus (7), Remer (6), Motley (6) and Bena (5). Beyond those, NOAA names Hackensack, Pillager, Pine River, Boy River, Brevik, Leader, Walker, Poplar and Jenkins on more than one hail day apiece.
| Place | Hail days since 2010 | Largest stone |
|---|---|---|
| Backus | 3 | 2.00″ |
| 3 E Motley | 3 | 1.75″ |
| Remer | 3 | 1.00″ |
| 1 S Backus | 2 | 2.00″ |
| 1 Nw Motley | 2 | 1.75″ |
When it hails in Cass County
The season runs June through September: 42 of the 47 hail days on record fall in those 4 months (89%). June is the single busiest month, with 16 of them (34%). That peak opens the window: the season starts at its worst and eases off from there. Hail has also been reported in May, outside that window. Reports span 5 of the 12 calendar months; the other 7 have never produced one.
| Month | Hail days |
|---|---|
| May | 5 |
| June | 16 |
| July | 9 |
| August | 11 |
| September | 6 |
Recent Cass County hail days
That day put 3 reports on the map, the biggest 1.25 inches near Boy River. 4 hail days have already been reported this year.
| Date | Max hail | Reports |
|---|---|---|
| 2026-08-20 | 1.25″ | 3 |
| 2026-08-06 | 1.00″ | 1 |
| 2026-06-19 | 1.75″ | 1 |
| 2026-06-10 | 1.00″ | 1 |
| 2025-09-12 | 1.00″ | 2 |
| 2025-06-20 | 1.00″ | 1 |
| 2025-06-16 | 1.25″ | 2 |
| 2024-08-03 | 2.00″ | 4 |
How to read the Cass County map
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.
Nearby counties
The nearest counties with a page of their own: Crow Wing County (40 hail days), Hubbard County (40) and Wadena County (34). Cass County takes more hail than any of them.
Crow Wing County · Hubbard County · Wadena County
Back to the Minnesota hail map or the U.S. hail map.
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Data & method: NOAA/NWS Storm Prediction Center reports + NOAA MRMS MESH radar, Cass County, Minnesota only. Radar-indicated and observation-based -- informational only, not a guarantee of damage or a valid claim.