Preliminary National Weather Service reports via the NOAA Storm Prediction Center. Record last changed October 13, 2026; latest storm day listed June 2, 2026.
What Counts As A Storm Day
A storm day is one Storm Prediction Center report date with at least one hail report of 1 inch or larger in 5 Austin metro counties (Travis, Williamson, Hays, Bastrop, Caldwell). Storm Prediction Center days run from 12:00 UTC to 12:00 UTC, so a report timed 00:00 to 11:59 UTC belongs to the date before it: the previous evening in Texas. These reports are preliminary. The National Weather Service later reviews them for the NCEI Storm Events record, which is what the Austin hail history counts, so a day can be listed here before the NCEI record has it.
A day gets its own page when a stone of 1.75 inches or larger was reported, or at least three reports came in; thinner days are listed here without a page.
Austin Hail Reports By County
Between January 1, 2024 and October 12, 2026 the Austin record holds 160 hail reports of 1 inch or larger on 27 storm days, and 11 of those days have their own page. The record was last changed October 13, 2026, and the reviewed NCEI record it is checked against reaches June 2, 2026.
| County | Reports | Storm days | Largest stone (inches) |
|---|---|---|---|
| Williamson | 79 | 15 | 4 |
| Travis | 42 | 9 | 2.5 |
| Hays | 23 | 7 | 3 |
| Bastrop | 11 | 5 | 2 |
| Caldwell | 5 | 1 | 2 |
Williamson County has 79 reports in the Austin record from 15 storm days, the largest 4 inches. Travis County has 42 reports in the Austin record from 9 storm days, the largest 2.5 inches. Hays County has 23 reports in the Austin record from 7 storm days, the largest 3 inches. Bastrop County has 11 reports in the Austin record from 5 storm days, the largest 2 inches. Caldwell County has 5 reports in the Austin record from 1 storm day, the largest 2 inches.
2026 Storm Days
7 storm days, through October 12, 2026. The Austin record for 2026 holds 11 reports of 1 inch or larger, most of them on May 19, 2026 (3), and the largest stone was 1 inch on June 2, 2026.
| Date | Largest stone (inches) | Reports | Reports 1.75 inches or larger | Counties |
|---|---|---|---|---|
| Jun 2, 2026 | 1 | 1 | 0 | Hays |
| May 26, 2026 | 1 | 1 | 0 | Williamson |
| May 19, 2026 | 1 | 3 | 0 | Williamson |
| May 10, 2026 | 1 | 1 | 0 | Williamson |
| May 9, 2026 | 1 | 1 | 0 | Travis |
| Apr 30, 2026 | 1 | 2 | 0 | Travis |
| Apr 18, 2026 | 1 | 2 | 0 | Williamson |
2025 Storm Days
12 storm days. The Austin record for 2025 holds 84 reports of 1 inch or larger, most of them on May 16, 2025 (18), and the largest stone was 3 inches on May 16, 2025.
| Date | Largest stone (inches) | Reports | Reports 1.75 inches or larger | Counties |
|---|---|---|---|---|
| May 28, 2025 | 2 | 12 | 3 | Travis, Williamson |
| May 22, 2025 | 2.75 | 13 | 7 | Caldwell, Hays, Travis |
| May 16, 2025 | 3 | 18 | 8 | Williamson |
| May 6, 2025 | 1.25 | 2 | 0 | Williamson |
| May 5, 2025 | 1.25 | 2 | 0 | Bastrop |
| May 1, 2025 | 1 | 1 | 0 | Williamson |
| Apr 30, 2025 | 2.5 | 7 | 2 | Williamson |
| Apr 22, 2025 | 2.5 | 15 | 2 | Williamson |
| Mar 30, 2025 | 1 | 2 | 0 | Williamson |
| Mar 23, 2025 | 1.25 | 9 | 0 | Hays, Travis, Williamson |
| Mar 14, 2025 | 1 | 1 | 0 | Bastrop |
| Feb 11, 2025 | 1 | 2 | 0 | Travis |
2024 Storm Days
8 storm days. The Austin record for 2024 holds 65 reports of 1 inch or larger, most of them on April 9, 2024 (33), and the largest stone was 4 inches on May 30, 2024.
| Date | Largest stone (inches) | Reports | Reports 1.75 inches or larger | Counties |
|---|---|---|---|---|
| Dec 24, 2024 | 1.25 | 1 | 0 | Bastrop |
| May 30, 2024 | 4 | 6 | 5 | Williamson |
| May 9, 2024 | 3 | 16 | 11 | Hays, Williamson |
| Apr 20, 2024 | 1 | 1 | 0 | Hays |
| Apr 9, 2024 | 2.5 | 33 | 11 | Bastrop, Hays, Travis, Williamson |
| Apr 1, 2024 | 1.5 | 6 | 0 | Hays, Travis |
| Mar 27, 2024 | 1 | 1 | 0 | Travis |
| Feb 10, 2024 | 1 | 1 | 0 | Bastrop |
Related Records
- Austin hail history, the NCEI record by year and month.
- How long after hail do roof permits rise? The days from each hail day to the first week of unusually high re-roof permits.
- Hail claim calculator
- Austin roofing company rankings
Sources
- NOAA Storm Prediction Center. Preliminary local storm reports, hail, one file per day, 2024-01-01 to 2026-10-12, pulled October 13, 2026, preliminary. https://www.spc.noaa.gov/climo/reports/.
- NOAA National Centers for Environmental Information. Storm Events Database, used for the record status of each day. https://www.ncei.noaa.gov/stormevents/.