◆ HAYES, SD HAIL HISTORY · STANLEY COUNTY
Hayes, SD hail history & hail map
Hayes, South Dakota has had 6 hail events in the past 5 years, with hail up to 2.50″ (Tennis Ball). Most recent: Aug 25, 2026. Free hail map, storm dates and NWS/CoCoRaHS reports.
✓ Data compiled by a degreed meteorologist from NOAA & NWS sources
6Hail events in the past 5 years
2.50″Largest recorded hail · Tennis Ball
2.50″Largest ground report (within 3 mi)
1.50″Largest radar-estimated hail

Radar hail swaths (NOAA MRMS MESH) in the past 5 years over Hayes, shaded by hail size; blue dots are ground reports.
Recent hail storm dates in Hayes
| Date | Peak hail | Sources |
|---|---|---|
| Aug 25, 2026 | 1.00″ Quarter | Radar 1.00″ |
| Jul 21, 2025 | 2.50″ Tennis Ball | 1 ground report (max 2.50″) |
| Jul 18, 2025 | 1.00″ Quarter | Radar 1.00″ |
| Aug 18, 2024 | 0.75″ Penny | Radar 0.75″ |
| Sep 21, 2023 | 1.75″ Golf Ball | 1 ground report (max 1.75″) |
| Jul 28, 2023 | 1.75″ Golf Ball | Radar 1.50″ · 1 ground report (max 1.75″) |
More South Dakota hail history
All South Dakota cities & hail days →
Events count days with NOAA MRMS radar hail over Hayes (44.310, -101.060) 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.