Dickinson County was hit as recently as 2026-05-15, 77 days ago. Dickinson County is hit in most years. The largest stone on record here is 2 inches, a hen egg and twice the National Weather Service's 1 inch severe criterion, reported on 2024-05-23 near Fostoria.
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 2026-05-15, around Terril. A free SwathIQ account -- hand-reviewed, invite within 24-48h -- pulls Dickinson 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 22 separate hail days here since 2010 -- 1.3 a year over 17 years of record. They carry 38 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 2022, with 4 hail days. The last five years track the long-run rate, with 8 days since 2022.
Most hail here stays under 2 inches: only 1 of the 22 days on record passed it, 5%, the last on 2024-05-23. Those big days do not follow the county's usual calendar: most of them fall in May, not June. 6 of the 22 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 Terril -- 9 of the county's 22 hail days -- then Lake Park (5), Milford (4), Arnolds Park (3) and Okoboji (2). That one town is named on 41% of them. Beyond those, NOAA names Superior, Spirit Lake and Orleans on more than one hail day apiece.
| Place | Hail days since 2010 | Largest stone |
|---|---|---|
| Lake Park | 4 | 1.25″ |
| Milford | 3 | 1.75″ |
| 4 Wnw Terril | 2 | 1.50″ |
| 3 N Fostoria | 1 | 2.00″ |
| 1 E Terril | 1 | 1.75″ |
The season runs May through August: 20 of the 22 hail days on record fall in those 4 months (91%). June is the single busiest month, with 8 of them (36%). That peak sits inside the window rather than at either end. Hail has also been reported in April, outside that window. Reports span 5 of the 12 calendar months; the other 7 have never produced one.
| Month | Hail days |
|---|---|
| April | 2 |
| May | 6 |
| June | 8 |
| July | 2 |
| August | 4 |
That day put 1 report on the map, the biggest 1 inch near Terril. 1 hail day has already been reported this year.
| Date | Max hail | Reports |
|---|---|---|
| 2026-05-15 | 1.00″ | 1 |
| 2024-07-04 | 1.00″ | 1 |
| 2024-05-23 | 2.00″ | 4 |
| 2023-05-08 | 1.50″ | 1 |
| 2022-08-18 | 1.25″ | 2 |
| 2022-05-30 | 1.25″ | 1 |
| 2022-04-22 | 1.00″ | 1 |
| 2022-04-12 | 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 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: Clay County (30 hail days), Emmet County (16), Osceola County (19) and Jackson County, Minnesota (26). Dickinson County sits in between.
Clay County · Emmet County · Osceola County · Jackson 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, Dickinson County, Iowa only. Radar-indicated and observation-based -- informational only, not a guarantee of damage or a valid claim.