◆ OLD ROUND ROCK, TX HAIL HISTORY · WILLIAMSON COUNTY
Old Round Rock, TX hail history & hail map
Old Round Rock, Texas has had 7 hail events in the past 5 years, with hail up to 4.00″ (Softball). Most recent: May 20, 2026. Free hail map, storm dates and NWS/CoCoRaHS reports.
✓ Data compiled by a degreed meteorologist from NOAA & NWS sources
7Hail events in the past 5 years
4.00″Largest recorded hail · Softball
4.00″Largest ground report (within 3 mi)
1.50″Largest radar-estimated hail
Radar hail swaths (NOAA MRMS MESH) in the past 5 years over Old Round Rock, shaded by hail size; blue dots are ground reports.
Recent hail storm dates in Old Round Rock
| Date | Peak hail | Sources |
|---|---|---|
| May 20, 2026 | 1.00″ Quarter | Radar 1.00″ |
| Apr 23, 2025 | 1.25″ Half Dollar | Radar 1.25″ · 6 ground reports (max 1.00″) |
| Apr 22, 2025 | 0.38″ Small | 1 ground report (max 0.38″) |
| Sep 25, 2023 | 4.00″ Softball | Radar 1.50″ · 14 ground reports (max 4.00″) |
| Sep 24, 2023 | 2.50″ Tennis Ball | 1 ground report (max 2.50″) |
| Apr 28, 2023 | 1.00″ Quarter | 3 ground reports (max 1.00″) |
| May 5, 2022 | 0.50″ Small | 1 ground report (max 0.50″) |
More Texas hail history
All Texas cities & hail days →
Events count days with NOAA MRMS radar hail over Old Round Rock (30.530, -97.650) or an NWS / CoCoRaHS hail report within 3 miles. Data window: NOAA MRMS radar hail swaths Oct 2021 – Nov 2026; NWS / NCEI Storm Events reports Nov 2024 – Jul 2026; CoCoRaHS volunteer reports Oct 2021 – present. Radar hail sizes are estimates, not ground truth; hail at any single address can differ.