Lyon County was hit as recently as 2026-06-15, 46 days ago. Lyon County is hit in most years, and usually several times over. 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 2012-06-18 near Russell.
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 2026-06-15, around Minneota. A free SwathIQ account -- hand-reviewed, invite within 24-48h -- pulls Lyon 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 37 separate hail days here since 2010 -- 2.2 a year over 17 years of record. Those days carry 81 separate reports between them, two or three on a typical one. 2 of those 17 years produced none at all. The busiest single year was 2022, with 5 hail days. The last five years track the long-run rate, with 14 days since 2022.
Most hail here stays under 2 inches: only 3 of the 37 days on record passed it, 8%, the last on 2017-06-21. They land in the same month as everything else, June. Golf-ball size is rarer still: 1.75 inches or more on 9 of the 37 days.
Across the whole of Minnesota, see the Minnesota hail map and history.
Reports cluster nearest Marshall -- 15 of the county's 37 hail days -- then Lynd (9), Tracy (6), Ghent (5) and Minneota (5). That one town is named on 41% of them. Beyond those, NOAA names Russell, Balaton and Cottonwood on more than one hail day apiece.
| Place | Hail days since 2010 | Largest stone |
|---|---|---|
| Lynd | 6 | 1.25″ |
| Marshall | 5 | 1.75″ |
| Minneota | 3 | 1.75″ |
| Russell | 3 | 1.75″ |
| Balaton | 3 | 1.50″ |
The season runs May through August: 31 of the 37 hail days on record fall in those 4 months (84%). June is the single busiest month, with 10 of them (27%). That peak sits inside the window rather than at either end. Hail has also been reported in April, 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 | 3 |
| May | 5 |
| June | 10 |
| July | 9 |
| August | 7 |
| September | 2 |
| October | 1 |
That day put 1 report on the map, the biggest 1 inch near Minneota. 1 hail day has already been reported this year.
| Date | Max hail | Reports |
|---|---|---|
| 2026-06-15 | 1.00″ | 1 |
| 2025-08-14 | 1.75″ | 2 |
| 2025-07-27 | 1.00″ | 1 |
| 2024-09-21 | 1.50″ | 4 |
| 2024-06-22 | 1.00″ | 1 |
| 2023-10-24 | 1.00″ | 1 |
| 2023-08-11 | 1.25″ | 3 |
| 2023-07-22 | 1.50″ | 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: Yellow Medicine County (15 hail days), Lincoln County (22) and Murray County (25). Lyon County takes more hail than any of them.
Yellow Medicine County · Lincoln County · Murray 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, Lyon County, Minnesota only. Radar-indicated and observation-based -- informational only, not a guarantee of damage or a valid claim.