Starr County was hit as recently as 2026-05-10, 82 days ago. Starr County is hit in most years. The largest stone on record here is 4.5 inches, a softball and 4.5 times the National Weather Service's 1 inch severe criterion, reported on 2026-03-07 near Rio Grande City.
Colored swath = NOAA MRMS radar-estimated hail size; dots = NOAA SPC reports in Texas. Radar-indicated, not a guarantee of damage.
The last hail here fell on 2026-05-10, around Sullivan City. A free SwathIQ account -- hand-reviewed, invite within 24-48h -- pulls Starr 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 19 separate hail days here since 2010 -- 1.1 a year over 17 years of record. Those days carry 41 separate reports between them, two or three on a typical one. 6 of those 17 years produced none at all. The busiest single year was 2026, with 3 hail days. The last five years have run hotter than the long-run rate: 9 days since 2022, against 0.8 a year before that.
4 of the 19 days reached 2 inches or more -- 21%, or about one hail day in 5, the last on 2026-03-07. They land in the same month as everything else, May. 7 of the 19 days reached golf-ball size, 1.75 inches or bigger.
Across the whole of Texas, see the Texas hail map and history.
Reports cluster nearest Rio Grande City -- 11 of the county's 19 hail days -- then Roma (4), El Sauz (2) and La Gloria (2). That one town is named on 58% of them.
| Place | Hail days since 2010 | Largest stone |
|---|---|---|
| Rio Grande City | 5 | 4.50″ |
| Roma | 3 | 2.00″ |
| Escobares | 1 | 2.75″ |
| Los Villareales | 1 | 2.50″ |
| 8 N Rio Grande City | 1 | 2.00″ |
The season runs March through May: 17 of the 19 hail days on record fall in those 3 months (89%). May is the single busiest month, with 10 of them (53%). That peak closes the window: the season builds all the way to its worst month and then stops. Hail has also been reported in June and September, outside that window. Reports span 5 of the 12 calendar months; the other 7 have never produced one.
| Month | Hail days |
|---|---|
| March | 3 |
| April | 4 |
| May | 10 |
| June | 1 |
| September | 1 |
That day put 1 report on the map, the biggest 1 inch near Sullivan City. 3 hail days have already been reported this year.
| Date | Max hail | Reports |
|---|---|---|
| 2026-05-10 | 1.00″ | 1 |
| 2026-05-09 | 1.00″ | 1 |
| 2026-03-07 | 4.50″ | 6 |
| 2025-05-08 | 1.75″ | 3 |
| 2025-05-06 | 1.50″ | 1 |
| 2024-05-13 | 1.25″ | 3 |
| 2023-06-03 | 1.50″ | 1 |
| 2023-04-28 | 1.75″ | 5 |
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 4.5 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: Hidalgo County (26 hail days), Zapata County (15) and Webb County (25). Starr County sits in between.
Hidalgo County · Zapata County · Webb County
Back to the Texas hail map or the U.S. hail map.
Data & method: NOAA/NWS Storm Prediction Center reports + NOAA MRMS MESH radar, Starr County, Texas only. Radar-indicated and observation-based -- informational only, not a guarantee of damage or a valid claim.