The most recent reported hail day was 2025-06-22 -- 1 year ago, with nothing reported since. Rock County is hit in most years, and usually several times over. The largest stone on record here is 4.25 inches and 4.2 times the National Weather Service's 1 inch severe criterion, reported on 2020-06-08 near Atkinson.
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 2025-06-22, around Rose. A free SwathIQ account -- hand-reviewed, invite within 24-48h -- pulls Rock 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 41 separate hail days here since 2010 -- 2.4 a year over 17 years of record. Those days carry 77 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 5 hail days. The last five years track the long-run rate, with 11 days since 2022.
7 of the 41 days reached 2 inches or more -- 17%, or about one hail day in 6, the last on 2023-05-06. They land in the same month as everything else, June. 16 of the 41 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 Bassett -- 22 of the county's 41 hail days -- then Newport (13), Rose (11) and Long Pine (5). That one town is named on 54% of them.
| Place | Hail days since 2010 | Largest stone |
|---|---|---|
| Bassett | 5 | 1.50″ |
| Newport | 4 | 2.75″ |
| 6 SE Long Pine | 3 | 1.00″ |
| 10 Sw Bassett | 2 | 4.25″ |
| Rose | 2 | 2.50″ |
The season runs May through August: 35 of the 41 hail days on record fall in those 4 months (85%). June is the single busiest month, with 15 of them (37%). That peak sits inside the window rather than at either end. Hail has also been reported in April, September and October, outside that window. Reports span 7 of the 12 calendar months; the other 5 have never produced one.
| Month | Hail days |
|---|---|
| April | 2 |
| May | 8 |
| June | 15 |
| July | 4 |
| August | 8 |
| September | 3 |
| October | 1 |
That day put 1 report on the map, the biggest 1.25 inches near Rose. No hail day has been reported here yet this year.
| Date | Max hail | Reports |
|---|---|---|
| 2025-06-22 | 1.25″ | 1 |
| 2024-08-26 | 1.75″ | 1 |
| 2024-06-25 | 1.75″ | 2 |
| 2024-06-07 | 1.75″ | 2 |
| 2024-05-14 | 1.75″ | 4 |
| 2023-09-07 | 1.25″ | 1 |
| 2023-08-04 | 1.00″ | 1 |
| 2023-05-06 | 3.00″ | 2 |
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 4.25 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: Brown County (48 hail days), Keya Paha County (35) and Holt County (78). Rock County sits in between.
Brown County · Keya Paha County · Holt County
Back to the Nebraska hail map or the U.S. hail map.
Data & method: NOAA/NWS Storm Prediction Center reports + NOAA MRMS MESH radar, Rock County, Nebraska only. Radar-indicated and observation-based -- informational only, not a guarantee of damage or a valid claim.