◆ CASTLE ROCK, CO HAIL HISTORY · DOUGLAS COUNTY
Castle Rock, CO hail history & hail map
Castle Rock, Colorado has had 12 hail events in the past 5 years, with hail up to 1.00″ (Quarter). Most recent: Jul 28, 2026. Free hail map, storm dates and NWS/CoCoRaHS reports.
✓ Data compiled by a degreed meteorologist from NOAA & NWS sources
12Hail events in the past 5 years
1.00″Largest recorded hail · Quarter
1.00″Largest ground report (within 3 mi)
1.00″Largest radar-estimated hail
Radar hail swaths (NOAA MRMS MESH) in the past 5 years over Castle Rock, shaded by hail size; blue dots are ground reports.
Recent hail storm dates in Castle Rock
| Date | Peak hail | Sources |
|---|---|---|
| Jul 28, 2026 | 1.00″ Quarter | 2 ground reports (max 1.00″) |
| Oct 27, 2025 | 0.75″ Penny | 1 ground report (max 0.75″) |
| Mar 30, 2025 | 0.25″ Small | 1 ground report (max 0.25″) |
| Aug 10, 2024 | 0.62″ Small | 1 ground report (max 0.62″) |
| Aug 4, 2024 | 0.38″ Small | 1 ground report (max 0.38″) |
| Jun 9, 2024 | 0.38″ Small | 2 ground reports (max 0.38″) |
| Aug 28, 2023 | 0.88″ Nickel | 1 ground report (max 0.88″) |
| Aug 1, 2023 | 1.00″ Quarter | Radar 1.00″ |
| Jun 12, 2023 | 0.25″ Small | 1 ground report (max 0.25″) |
| Jun 10, 2023 | 0.50″ Small | 2 ground reports (max 0.50″) |
| May 24, 2023 | 0.25″ Small | 1 ground report (max 0.25″) |
| May 10, 2023 | 0.38″ Small | 1 ground report (max 0.38″) |
More Colorado hail history
All Colorado cities & hail days →
Events count days with NOAA MRMS radar hail over Castle Rock (39.410, -104.890) 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.