Iowa was hit as recently as 2026-07-03, 28 days ago. NOAA's Storm Prediction Center has logged 575 separate hail days in Iowa since 2010, across 4,993 individual storm reports. 133 of those days brought hail 2 inches or larger, and the largest stone on record is 4.25 inches on 2017-06-29 near Sergeant Bluff, Woodbury.
Iowa takes repeated late-spring and summer hail across Des Moines, Cedar Rapids, and the Quad Cities. Pick a date below to see the NOAA radar swath and reports, or check a specific address.
Colored swath = NOAA MRMS radar-estimated hail size; dots = NOAA SPC reports in Iowa. Radar-indicated, not a guarantee of damage.
A free SwathIQ account -- hand-reviewed, invite within 24-48h -- pulls Iowa 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 ->Iowa averages 34 reported hail days a year across 17 years of NOAA archive, about 8 of them carrying hail 2″ or larger -- the size that routinely totals roofs. Major metros watched here: Des Moines, Cedar Rapids, Davenport.
Iowa's busiest hail month is June, with 134 of its 575 hail days on record. April through August holds 479 of them, 83% of the record.
| Month | Hail days since 2010 |
|---|---|
| January | 2 |
| February | 3 |
| March | 31 |
| April | 70 |
| May | 112 |
| June | 134 |
| July | 90 |
| August | 73 |
| September | 45 |
| October | 12 |
| November | 2 |
| December | 1 |
| County | Hail days since 2010 | Largest stone |
|---|---|---|
| Polk | 54 | 3.25″ |
| Warren | 43 | 3.00″ |
| Pottawattamie | 42 | 4.00″ |
| Plymouth | 40 | 2.75″ |
| Dallas | 39 | 3.00″ |
| Sioux | 39 | 2.50″ |
93 Iowa counties have at least 13 NOAA hail days on record since 2010 -- enough archive signal for a page of their own. Ordered by hail days.
Polk County · Warren County · Pottawattamie County · Plymouth County · Dallas County · Sioux County · Linn County · Webster County · Cerro Gordo County · Story County · Woodbury County · Harrison County · O'Brien County · Clarke County · Jasper County · Johnson County · Benton County · Kossuth County · Page County · Taylor County · Lee County · Scott County · Clay County · Fremont County · Lyon County · Marion County · Union County · Cherokee County · Floyd County · Hancock County · Van Buren County · Adair County · Mills County · Dubuque County · Calhoun County · Guthrie County · Marshall County · Monona County · Montgomery County · Boone County · Palo Alto County · Shelby County · Cedar County · Greene County · Madison County · Washington County · Black Hawk County · Clinton County · Fayette County · Keokuk County · Butler County · Clayton County · Dickinson County · Franklin County · Humboldt County · Iowa County · Pocahontas County · Cass County · Des Moines County · Ida County · Jones County · Muscatine County · Poweshiek County · Ringgold County · Adams County · Bremer County · Buchanan County · Buena Vista County · Henry County · Sac County · Osceola County · Tama County · Appanoose County · Crawford County · Wapello County · Winnebago County · Carroll County · Jefferson County · Audubon County · Delaware County · Emmet County · Grundy County · Hardin County · Decatur County · Mahaska County · Monroe County · Wayne County · Lucas County · Wright County · Hamilton County · Mitchell County · Winneshiek County · Worth County
| Date | Max hail | Reports |
|---|---|---|
| 2026-07-03 | 1.00″ | 2 |
| 2026-07-02 | 3.50″ | 14 |
| 2026-06-29 | 1.25″ | 4 |
| 2026-06-28 | 1.50″ | 1 |
| 2026-06-27 | 1.00″ | 2 |
| 2026-06-11 | 2.00″ | 14 |
| 2026-06-10 | 3.00″ | 9 |
| 2026-06-01 | 1.00″ | 1 |
The colored swath is NOAA's MRMS radar estimate of the largest hail in each ~1 km cell; the dots are individual SPC ground reports. Yellow is around an inch, red is 1.5 to 2″, and purple is 2″ and up -- see how hail size maps to roof damage. Click any spot on the map to see the hail history at that point, or look up a full street address on the hail history by address tool. Today's nationwide activity is on today's hail report.
Illinois · North Dakota · Arkansas · New Mexico · Wyoming · North Carolina
Data & method: NOAA/NWS Storm Prediction Center reports + NOAA MRMS MESH radar, Iowa only. Radar-indicated and observation-based -- informational only, not a guarantee of damage or a valid claim.