◆ ROBERTSON, MO HAIL HISTORY · ST. LOUIS COUNTY
Robertson, MO hail history & hail map
Robertson, Missouri has had 10 hail events in the past 5 years, with hail up to 1.50″ (Ping Pong Ball). Most recent: May 4, 2026. Free hail map, storm dates and NWS/CoCoRaHS reports.
✓ Data compiled by a degreed meteorologist from NOAA & NWS sources
10Hail events in the past 5 years
1.50″Largest recorded hail · Ping Pong Ball
1.50″Largest ground report (within 3 mi)
1.25″Largest radar-estimated hail
Radar hail swaths (NOAA MRMS MESH) in the past 5 years over Robertson, shaded by hail size; blue dots are ground reports.
Recent hail storm dates in Robertson
| Date | Peak hail | Sources |
|---|---|---|
| May 4, 2026 | 0.70″ Small | 2 ground reports (max 0.70″) |
| Mar 15, 2026 | 0.10″ Small | 1 ground report (max 0.10″) |
| May 20, 2025 | 1.50″ Ping Pong Ball | 4 ground reports (max 1.50″) |
| May 19, 2025 | 0.75″ Penny | 1 ground report (max 0.75″) |
| May 16, 2025 | 0.25″ Small | 1 ground report (max 0.25″) |
| May 26, 2024 | 1.50″ Ping Pong Ball | Radar 1.25″ · 3 ground reports (max 1.50″) |
| Apr 18, 2024 | 1.00″ Quarter | 2 ground reports (max 1.00″) |
| Apr 1, 2024 | 1.00″ Quarter | 4 ground reports (max 1.00″) |
| May 13, 2023 | 1.00″ Quarter | 1 ground report (max 1.00″) |
| Apr 15, 2023 | 0.50″ Small | 2 ground reports (max 0.50″) |
More Missouri hail history
All Missouri cities & hail days →
Events count days with NOAA MRMS radar hail over Robertson (38.790, -90.390) 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.