Sioux County was hit as recently as 2026-06-22, 39 days ago. Sioux County is hit in most years, and usually several times over. The largest stone on record here is 4 inches, a grapefruit and 4 times the National Weather Service's 1 inch severe criterion, reported on 2022-07-05 near Agate.
Colored swath = NOAA MRMS radar-estimated hail size; dots = NOAA SPC reports in Nebraska. Radar-indicated, not a guarantee of damage.
The last hail here fell on 2026-06-22, around Henry. A free SwathIQ account -- hand-reviewed, invite within 24-48h -- pulls Sioux 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 56 separate hail days here since 2010 -- 3.3 a year over 17 years of record. Those days carry 101 separate reports between them, two or three on a typical one. Exactly one year since 2010 passed with no reported hail day at all. The busiest single year was 2010, with 9 hail days. The last five years track the long-run rate, with 14 days since 2022.
9 of the 56 days reached 2 inches or more -- 16%, or about one hail day in 6, the last on 2023-09-22. They land in the same month as everything else, June. 20 of the 56 days reached golf-ball size, 1.75 inches or bigger.
Across the whole of Nebraska, see the Nebraska hail map and history.
Reports cluster nearest Harrison -- 25 of the county's 56 hail days -- then Morrill (9), Agate (8), Henry (4) and Mitchell (4). That one town is named on 45% of them. Beyond those, NOAA names Fort Robinson, Montrose and Marsland on more than one hail day apiece.
| Place | Hail days since 2010 | Largest stone |
|---|---|---|
| Harrison | 7 | 2.75″ |
| 6 N Morrill | 4 | 2.75″ |
| 9 Ne Harrison | 3 | 1.75″ |
| 4 Nne Morrill | 2 | 2.75″ |
| 10 E Harrison | 2 | 1.75″ |
The season runs June through August: 48 of the 56 hail days on record fall in those 3 months (86%). June is the single busiest month, with 23 of them (41%). That peak opens the window: the season starts at its worst and eases off from there. Hail has also been reported in May and September, outside that window. Reports span 5 of the 12 calendar months; the other 7 have never produced one.
| Month | Hail days |
|---|---|
| May | 6 |
| June | 23 |
| July | 17 |
| August | 8 |
| September | 2 |
That day put 1 report on the map, the biggest 1 inch near Henry. 1 hail day has already been reported this year.
| Date | Max hail | Reports |
|---|---|---|
| 2026-06-22 | 1.00″ | 1 |
| 2025-06-13 | 1.00″ | 1 |
| 2024-07-17 | 1.50″ | 1 |
| 2024-07-03 | 1.00″ | 1 |
| 2023-09-22 | 2.50″ | 4 |
| 2023-07-19 | 2.50″ | 6 |
| 2023-07-13 | 1.75″ | 1 |
| 2023-07-06 | 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 4 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: Dawes County (61 hail days), Scotts Bluff County (74), Box Butte County (64) and Goshen County, Wyoming (100). Every one of them takes more hail than Sioux County.
Dawes County · Scotts Bluff County · Box Butte County · Goshen County, Wyoming
Back to the Nebraska hail map or the U.S. hail map.
Data & method: NOAA/NWS Storm Prediction Center reports + NOAA MRMS MESH radar, Sioux County, Nebraska only. Radar-indicated and observation-based -- informational only, not a guarantee of damage or a valid claim.