Custer County, Nebraska Hail Map & History
Custer County was hit as recently as 2026-08-20, 25 days ago. Custer County is hit in most years, and usually several times over. The largest stone on record here is 3 inches, a teacup and 3 times the National Weather Service's 1 inch severe criterion, reported on 2025-07-19 near Arnold.
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 2026-08-20, around Callaway. A free SwathIQ account -- hand-reviewed, invite within 24-48h -- pulls Custer 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 ->How often it hails in Custer County
NOAA's Storm Prediction Center has logged 128 separate hail days here since 2010 -- 7.5 a year over 17 years of record. Those days carry 328 separate reports between them, two or three on a typical one. No year since 2010 has gone by without at least one. The busiest single year was 2014, with 14 hail days. The last five years track the long-run rate, with 30 days since 2022.
25 of the 128 days reached 2 inches or more -- 20%, or about one hail day in 5, the last on 2025-07-23. Those big days do not follow the county's usual calendar: most of them fall in July, not June. 54 of the 128 days reached golf-ball size, 1.75 inches or bigger.
Across the whole of Nebraska, see the Nebraska hail map and history.
Hardest-hit places in Custer County
Reports cluster nearest Callaway -- 32 of the county's 128 hail days -- then Broken Bow (26), Oconto (22), Anselmo (22) and Arnold (21). Beyond those, NOAA names Ansley, Sargent, Mason City, Merna, Gates, Berwyn, Weissert, Comstock and Westerville on more than one hail day apiece.
| Place | Hail days since 2010 | Largest stone |
|---|---|---|
| Ansley | 11 | 2.50″ |
| 2 Se Anselmo | 9 | 1.75″ |
| Broken Bow | 8 | 1.75″ |
| Oconto | 5 | 2.50″ |
| Sargent | 5 | 1.25″ |
When it hails in Custer County
The season runs May through August: 111 of the 128 hail days on record fall in those 4 months (87%). June is the single busiest month, with 36 of them (28%). That peak sits inside the window rather than at either end. Hail has also been reported in March, April, 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 | 2 |
| April | 7 |
| May | 25 |
| June | 36 |
| July | 30 |
| August | 20 |
| September | 5 |
| October | 3 |
Recent Custer County hail days
That day put 1 report on the map, the biggest 1.75 inches near Callaway. 3 hail days have already been reported this year.
| Date | Max hail | Reports |
|---|---|---|
| 2026-08-20 | 1.75″ | 1 |
| 2026-06-09 | 1.00″ | 1 |
| 2026-05-16 | 1.00″ | 1 |
| 2025-07-23 | 2.50″ | 1 |
| 2025-07-19 | 3.00″ | 2 |
| 2025-06-16 | 1.00″ | 2 |
| 2025-06-02 | 1.50″ | 1 |
| 2025-05-14 | 1.00″ | 1 |
How to read the Custer County map
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 3 inches, which is the purple band. Look up a street address with the hail history by address tool.
Nearby counties
The nearest counties with a page of their own: Loup County (32 hail days), Dawson County (75) and Valley County (46). Custer County takes more hail than any of them.
Loup County · Dawson County · Valley County
Back to the Nebraska hail map or the U.S. hail map.
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Data & method: NOAA/NWS Storm Prediction Center reports + NOAA MRMS MESH radar, Custer County, Nebraska only. Radar-indicated and observation-based -- informational only, not a guarantee of damage or a valid claim.