◆ CASTLE VALLEY, UT HAIL HISTORY · GRAND COUNTY
Castle Valley, UT hail history & hail map
Castle Valley, Utah has had 1 hail event in the past 5 years, with hail up to 1.00″ (Quarter). Most recent: Sep 12, 2025. Free hail map, storm dates and NWS/CoCoRaHS reports.
✓ Data compiled by a degreed meteorologist from NOAA & NWS sources
1Hail events in the past 5 years
1.00″Largest recorded hail · Quarter
1.00″Largest ground report (within 3 mi)
—Largest radar-estimated hail
Radar hail swaths (NOAA MRMS MESH) in the past 5 years over Castle Valley, shaded by hail size; blue dots are ground reports.
Recent hail storm dates in Castle Valley
| Date | Peak hail | Sources |
|---|---|---|
| Sep 12, 2025 | 1.00″ Quarter | 1 ground report (max 1.00″) |
More Utah hail history
Events count days with NOAA MRMS radar hail over Castle Valley (39.004, -109.598) 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.