◆ LYMAN, SD HAIL HISTORY · LYMAN COUNTY
Lyman, SD hail history & hail map
Lyman, South Dakota has had 2 hail events in the past 5 years, with hail up to 2.50″ (Tennis Ball). Most recent: Aug 4, 2025. Free hail map, storm dates and NWS/CoCoRaHS reports.
✓ Data compiled by a degreed meteorologist from NOAA & NWS sources
2Hail events in the past 5 years
2.50″Largest recorded hail · Tennis Ball
2.50″Largest ground report (within 3 mi)
1.00″Largest radar-estimated hail
Radar hail swaths (NOAA MRMS MESH) in the past 5 years over Lyman, shaded by hail size; blue dots are ground reports.
Recent hail storm dates in Lyman
| Date | Peak hail | Sources |
|---|---|---|
| Aug 4, 2025 | 0.75″ Penny | Radar 0.75″ |
| Jul 10, 2025 | 2.50″ Tennis Ball | Radar 1.00″ · 1 ground report (max 2.50″) |
More South Dakota hail history
All South Dakota cities & hail days →
Events count days with NOAA MRMS radar hail over Lyman (43.880, -99.730) 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.