◆ CLAYTON, MO HAIL HISTORY · ST. LOUIS COUNTY
Clayton, MO hail history & hail map
Clayton, Missouri has had 8 hail events in the past 5 years, with hail up to 2.00″ (Golf Ball). Most recent: Apr 27, 2026. Free hail map, storm dates and NWS/CoCoRaHS reports.
✓ Data compiled by a degreed meteorologist from NOAA & NWS sources
8Hail events in the past 5 years
2.00″Largest recorded hail · Golf Ball
2.00″Largest ground report (within 3 mi)
1.25″Largest radar-estimated hail
Radar hail swaths (NOAA MRMS MESH) in the past 5 years over Clayton, shaded by hail size; blue dots are ground reports.
Recent hail storm dates in Clayton
| Date | Peak hail | Sources |
|---|---|---|
| Apr 27, 2026 | 1.75″ Golf Ball | 8 ground reports (max 1.75″) |
| May 20, 2025 | 0.75″ Penny | Radar 0.75″ |
| May 16, 2025 | 2.00″ Golf Ball | Radar 1.25″ · 5 ground reports (max 2.00″) |
| Mar 15, 2025 | 1.00″ Quarter | 4 ground reports (max 1.00″) |
| May 22, 2024 | 0.75″ Penny | 2 ground reports (max 0.75″) |
| Apr 2, 2024 | 0.75″ Penny | 2 ground reports (max 0.75″) |
| Jul 1, 2023 | 1.00″ Quarter | Radar 0.75″ · 2 ground reports (max 1.00″) |
| Jun 4, 2023 | 1.00″ Quarter | 5 ground reports (max 1.00″) |
More Missouri hail history
All Missouri cities & hail days →
Events count days with NOAA MRMS radar hail over Clayton (38.650, -90.330) 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.