The most recent reported hail day was 2025-08-17, 348 days ago. Brown County is hit in most years, and usually several times over. 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 2020-08-13 near Johnstown.
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 2025-08-17, around Ainsworth. A free SwathIQ account -- hand-reviewed, invite within 24-48h -- pulls Brown 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 48 separate hail days here since 2010 -- 2.8 a year over 17 years of record. Those days carry 88 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 2023, with 4 hail days. The last five years track the long-run rate, with 12 days since 2022.
5 of the 48 days reached 2 inches or more -- 10%, or about one hail day in 10, the last on 2024-07-16. They land in the same month as everything else, July. 19 of the 48 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 Ainsworth -- 28 of the county's 48 hail days -- then Johnstown (16), Long Pine (10), Brewster (5) and Elsmere (5). That one town is named on 58% of them. Beyond those, NOAA names S Ainsworth on more than one hail day apiece.
| Place | Hail days since 2010 | Largest stone |
|---|---|---|
| Ainsworth | 6 | 1.75″ |
| 9 Ene Elsmere | 3 | 1.75″ |
| Long Pine | 3 | 1.75″ |
| 7 S Ainsworth | 3 | 1.50″ |
| 12 N Brewster | 2 | 2.25″ |
The season runs May through August: 48 of the 48 hail days on record fall in those 4 months (100%). July is the single busiest month, with 14 of them (29%). That peak sits inside the window rather than at either end. Reports span 4 of the 12 calendar months; the other 8 have never produced one.
| Month | Hail days |
|---|---|
| May | 10 |
| June | 13 |
| July | 14 |
| August | 11 |
That day put 1 report on the map, the biggest 1.75 inches near Ainsworth. No hail day has been reported here yet this year.
| Date | Max hail | Reports |
|---|---|---|
| 2025-08-17 | 1.75″ | 1 |
| 2025-07-19 | 1.75″ | 3 |
| 2025-07-15 | 1.00″ | 1 |
| 2024-07-30 | 1.75″ | 2 |
| 2024-07-16 | 2.00″ | 3 |
| 2024-06-20 | 1.50″ | 2 |
| 2023-08-04 | 1.75″ | 1 |
| 2023-07-17 | 2.25″ | 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 2.5 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: Rock County (41 hail days), Keya Paha County (35) and Blaine County (48). Brown County sits in between.
Rock County · Keya Paha County · Blaine 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, Brown County, Nebraska only. Radar-indicated and observation-based -- informational only, not a guarantee of damage or a valid claim.