Hail history · South Dakota
Pennington County, South Dakota hail history
137 days with hail reports since 2010, most recently Aug 23, 2026. Largest hail: 4.50".
Hail days since 201013758 in the last 5 years
Largest hail4.50"grapefruit · Aug 8, 2020
Damaging wind reports307last Sep 7, 2026
By year
| Year | Hail days | Hail reports | Largest hail | Wind reports | Strongest gust |
|---|---|---|---|---|---|
| 2026 (preliminary) | 8 | 18 | 3.00" | 30 | 79 mph |
| 2025 | 7 | 15 | 1.75" | 37 | 71 mph |
| 2024 | 10 | 35 | 2.25" | 33 | 81 mph |
| 2023 | 20 | 93 | 3.25" | 10 | 72 mph |
| 2022 | 13 | 29 | 4.50" | 23 | 79 mph |
| 2021 | 10 | 32 | 4.50" | 24 | 70 mph |
| 2020 | 17 | 109 | 4.50" | 40 | 81 mph |
| 2019 | 13 | 62 | 2.25" | 23 | 72 mph |
| 2018 | 14 | 62 | 2.75" | 24 | 77 mph |
| 2017 | 7 | 23 | 1.75" | 26 | 76 mph |
| 2016 | 18 | 55 | 2.75" | 37 | 83 mph |
| 2015 | 0 | 0 | – | 0 | – |
| 2014 | 0 | 0 | – | 0 | – |
| 2013 | 0 | 0 | – | 0 | – |
| 2012 | 0 | 0 | – | 0 | – |
| 2011 | 0 | 0 | – | 0 | – |
| 2010 | 0 | 0 | – | 0 | – |
Largest hail reports
| Size | About the size of a | Date |
|---|---|---|
| 4.50" | grapefruit | Aug 8, 2020 |
| 4.50" | grapefruit | Aug 26, 2021 |
| 4.50" | grapefruit | Jun 12, 2022 |
| 4.00" | softball | Aug 8, 2020 |
| 3.25" | teacup | Jul 10, 2020 |
| 3.25" | teacup | Jul 10, 2020 |
| 3.25" | teacup | Jul 30, 2023 |
| 3.00" | teacup | Jul 10, 2020 |
| 3.00" | teacup | Jul 10, 2020 |
| 3.00" | teacup | Jul 10, 2020 |
Check a specific address
County totals hide big differences between neighborhoods. See every report within 1 to 10 miles of a home.
Source: NOAA Storm Prediction Center storm reports (final Storm Data through Dec 28, 2025; preliminary reports through Oct 9, 2026). Hail 1 inch or larger and damaging wind (58 mph or more, or reported damage). Counts are reports, not damage claims; many storms go unreported. Dates are CST. About the data