Mills County was hit as recently as 2026-05-15, 77 days ago. Mills County is hit in most years. 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 2013-10-04 near Pacific Junction.
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 Emerson. A free SwathIQ account -- hand-reviewed, invite within 24-48h -- pulls Mills 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 28 separate hail days here since 2010 -- 1.6 a year over 17 years of record. Those days carry 56 separate reports between them, two or three on a typical one. 5 of those 17 years produced none at all. The busiest single year was 2022, with 5 hail days. The last five years have run hotter than the long-run rate: 12 days since 2022, against 1.3 a year before that.
4 of the 28 days reached 2 inches or more -- 14%, or about one hail day in 7, the last on 2024-04-30. Those big days do not follow the county's usual calendar: most of them fall in April, not June. 9 of the 28 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 Glenwood -- 13 of the county's 28 hail days -- then Malvern (7), Pacific Junction (5), Emerson (3) and Henderson (3). That one town is named on 46% of them. Beyond those, NOAA names Silver City on more than one hail day apiece.
| Place | Hail days since 2010 | Largest stone |
|---|---|---|
| Glenwood | 6 | 2.00″ |
| Malvern | 5 | 2.25″ |
| 3 W Pacific Junction | 3 | 1.75″ |
| 4 ESE Glenwood | 2 | 1.75″ |
| 2 Nnw Pacific Junction | 1 | 2.75″ |
The season runs April through August: 25 of the 28 hail days on record fall in those 5 months (89%). June is the single busiest month, with 8 of them (29%). That peak sits inside the window rather than at either end. Hail has also been reported in March, September and October, outside that window. Reports span 8 of the 12 calendar months; the other 4 have never produced one.
| Month | Hail days |
|---|---|
| March | 1 |
| April | 7 |
| May | 5 |
| June | 8 |
| July | 2 |
| August | 3 |
| September | 1 |
| October | 1 |
That day put 1 report on the map, the biggest 1 inch near Emerson. 2 hail days have already been reported this year.
| Date | Max hail | Reports |
|---|---|---|
| 2026-05-15 | 1.00″ | 1 |
| 2026-03-06 | 1.00″ | 1 |
| 2025-04-17 | 1.00″ | 1 |
| 2024-04-30 | 2.25″ | 5 |
| 2023-07-17 | 1.50″ | 3 |
| 2023-05-07 | 2.25″ | 8 |
| 2023-04-19 | 2.50″ | 11 |
| 2022-09-17 | 1.25″ | 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, over the state line included: Fremont County (30 hail days), Pottawattamie County (42), Montgomery County (26), Sarpy County, Nebraska (40) and Cass County, Nebraska (50). Mills County sits in between.
Fremont County · Pottawattamie County · Montgomery County · Sarpy County, Nebraska · Cass County, Nebraska
Back to the Iowa hail map or the U.S. hail map.
Data & method: NOAA/NWS Storm Prediction Center reports + NOAA MRMS MESH radar, Mills County, Iowa only. Radar-indicated and observation-based -- informational only, not a guarantee of damage or a valid claim.