The most recent reported hail day was 2025-09-22, 312 days ago. Mitchell County is hit in about half the years on record. 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 2017-04-09 near Stacyville.
Colored swath = NOAA MRMS radar-estimated hail size; dots = NOAA SPC reports in Iowa. Radar-indicated, not a guarantee of damage.
The last hail here fell on 2025-09-22, around Saint Ansgar. A free SwathIQ account -- hand-reviewed, invite within 24-48h -- pulls Mitchell 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 13 separate hail days here since 2010 -- 0.8 a year over 17 years of record. They carry 20 reports in total: most hail days here are logged from a single spot. 10 of those 17 years produced none at all. One year dominates the record: 2013 alone produced 4 of the 13 days. The last five years have run hotter than the long-run rate: 5 days since 2022, against 0.7 a year before that.
2 of the 13 days reached 2 inches or more -- 15%, or about one hail day in 6, the last on 2017-04-09. They land in the same month as everything else, April. 4 of the 13 days reached golf-ball size, 1.75 inches or bigger.
Across the whole of Iowa, see the Iowa hail map and history.
Reports cluster nearest Stacyville -- 4 of the county's 13 hail days -- then Osage (4), St. Ansgar (2) and Saint Ansgar (2).
| Place | Hail days since 2010 | Largest stone |
|---|---|---|
| Stacyville | 3 | 1.25″ |
| St. Ansgar | 2 | 2.00″ |
| Osage | 2 | 1.50″ |
| 2 Ne Stacyville | 1 | 2.50″ |
| 4 Ne Mitchell | 1 | 1.75″ |
The season runs March through July: 12 of the 13 hail days on record fall in those 5 months (92%). April is the single busiest month, with 4 of them (31%). That peak sits inside the window rather than at either end. Hail has also been reported in September, outside that window. Reports span 6 of the 12 calendar months; the other 6 have never produced one.
| Month | Hail days |
|---|---|
| March | 2 |
| April | 4 |
| May | 3 |
| June | 1 |
| July | 2 |
| September | 1 |
That day put 1 report on the map, the biggest 1 inch near Saint Ansgar. No hail day has been reported here yet this year.
| Date | Max hail | Reports |
|---|---|---|
| 2025-09-22 | 1.00″ | 1 |
| 2025-04-28 | 1.00″ | 1 |
| 2023-03-31 | 1.25″ | 2 |
| 2022-07-10 | 1.00″ | 1 |
| 2022-05-09 | 1.75″ | 2 |
| 2018-06-09 | 1.00″ | 1 |
| 2017-04-09 | 2.50″ | 4 |
| 2017-03-06 | 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, over the state line included: Worth County (13 hail days), Floyd County (29), Cerro Gordo County (37) and Mower County, Minnesota (18). Mitchell County sits in between.
Worth County · Floyd County · Cerro Gordo County · Mower County, Minnesota
Back to the Iowa hail map or the U.S. hail map.
Data & method: NOAA/NWS Storm Prediction Center reports + NOAA MRMS MESH radar, Mitchell County, Iowa only. Radar-indicated and observation-based -- informational only, not a guarantee of damage or a valid claim.