Dickinson County, Iowa Hail Map & History
Dickinson County was hit as recently as 2026-08-08, 37 days ago. Dickinson 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 2026-08-08 near West Okoboji.
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 2026-08-08, around West Okoboji. 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 ->How often it hails in Dickinson County
NOAA's Storm Prediction Center has logged 23 separate hail days here since 2010 -- 1.4 a year over 17 years of record. They carry 41 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 have run hotter than the long-run rate: 9 days since 2022, against 1.2 a year before that.
Most hail here stays under 2 inches: only 2 of the 23 days on record passed it, 9%, the last on 2026-08-08. Those big days do not follow the county's usual calendar: most of them fall in May, not June. 7 of the 23 days reached golf-ball size, 1.75 inches or bigger.
Across the whole of Iowa, see the Iowa hail map and history.
Hardest-hit places in Dickinson County
Reports cluster nearest Terril -- 9 of the county's 23 hail days -- then Milford (5), Lake Park (5), Arnolds Park (4) and West Okoboji (2). Beyond those, NOAA names Okoboji, 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″ |
| 1 NW West Okoboji | 1 | 2.50″ |
| 3 N Fostoria | 1 | 2.00″ |
When it hails in Dickinson County
The season runs May through August: 21 of the 23 hail days on record fall in those 4 months (91%). June is the single busiest month, with 8 of them (35%). 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 | 5 |
Recent Dickinson County hail days
That day put 3 reports on the map, the biggest 2.5 inches near West Okoboji. 2 hail days have already been reported this year.
| Date | Max hail | Reports |
|---|---|---|
| 2026-08-08 | 2.50″ | 3 |
| 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 |
How to read the Dickinson 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 2.5 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, over the state line included: Clay County (31 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.
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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.