Hail in Stanley County, South Dakota
Radar recorded hail of 1 inch or larger in Stanley County on 64 days since October 2020. That is more than 91% of US counties. It ranks 18 of 66 in South Dakota.
The largest radar estimate was 3.4 inches on July 14, 2025. The most recent 1-inch day was September 27, 2026. Radar estimates and ground reports often differ, so see how they compare.
See the county center on the map
Days of 1-inch hail by year
| Year | Days |
|---|---|
| 2020 (from October) | 0 |
| 2021 | 8 |
| 2022 | 11 |
| 2023 | 10 |
| 2024 | 12 |
| 2025 | 12 |
| 2026 | 11 |
Largest hail days
| Storm day | Radar estimate |
|---|---|
| July 14, 2025 | 3.4 in |
| July 26, 2023 | 3.25 in |
| August 18, 2025 | 2.75 in |
| July 5, 2021 | 2.5 in |
| August 24, 2026 | 2.5 in |
| September 20, 2023 | 2.25 in |
Ground reports
Within this area, storm spotters and weather offices logged 16 hail reports since October 2020, and 22 tornadoes started here since 1950.
Figures cover a circle with the same land area as the county, centered on it, so edges are approximate.
Most hail days in South Dakota
- Pennington County: 168 days
- Custer County: 160 days
- Oglala Lakota County: 130 days
- Lawrence County: 124 days
- Meade County: 120 days
- Butte County: 115 days