HailEvidence → hail history → Keystone, SD
Keystone, SD hail history
Every figure below is from the NOAA NCEI Storm Events Database — the official NWS record — counting events recorded within 10 miles of the Keystone city centroid, 1950 to present.
Check hail at your exact Keystone address — free
Hail by year — last 15 years
| Year | Hail events ≤ 10 mi | Largest hail |
|---|---|---|
| 2026 | 0 | — |
| 2025 | 8 | 1.75" (golf ball) |
| 2024 | 15 | 1.75" (golf ball) |
| 2023 | 28 | 3.25" (tea cup) |
| 2022 | 10 | 1.75" (golf ball) |
| 2021 | 19 | 2.75" (baseball) |
| 2020 | 28 | 2.75" (baseball) |
| 2019 | 18 | 2.25" (hen egg) |
| 2018 | 21 | 2.00" (hen egg) |
| 2017 | 12 | 2.00" (hen egg) |
| 2016 | 27 | 2.75" (baseball) |
| 2015 | 28 | 3.50" (tea cup) |
| 2014 | 19 | 2.00" (hen egg) |
| 2013 | 28 | 2.75" (baseball) |
| 2012 | 12 | 1.25" (half dollar) |
Note: the current and prior year reflect the latest NCEI compile and grow as NWS finalizes reports; same-day activity appears on this site's storm-day pages before it reaches this table.
Wind and tornado record
- 37 thunderstorm-wind events, strongest 81 mph, most recent 2025-07-06.
- 7 tornado events, most recent 2016-06-13.
Most recent recorded events
| Date | Type | Magnitude | Distance |
|---|---|---|---|
| 2025-07-19 | Hail | 1.00" | 9.3 mi |
| 2025-07-06 | Hail | 0.88" | 7.1 mi |
| 2025-07-06 | Thunderstorm Wind | 69 mph | 7.1 mi |
| 2025-07-06 | Hail | 1.75" | 9.3 mi |
| 2025-07-01 | Hail | 1.00" | 6.1 mi |
| 2025-07-01 | Hail | 1.00" | 6.8 mi |
| 2025-07-01 | Hail | 1.00" | 6.1 mi |
| 2025-06-25 | Hail | 0.88" | 5.6 mi |
| 2025-06-25 | Hail | 1.25" | 5.6 mi |
| 2025-06-15 | Thunderstorm Wind | 60 mph | 8 mi |
2025-07-19: “Report of Nickel to quarter size hail.”
2025-07-06: “Spotter phone call report.”
2025-07-06: “SD Mesonet measured wind gust.”
Storm-day records for Keystone — “did it hail on this date?”
Each recorded hail day in Keystone has its own page with the official NWS reports for that date.
- Hail in Keystone, SD on July 3, 2026 — up to 1.25"
- Hail in Keystone, SD on July 2, 2026 — up to 1.00"
- Hail in Keystone, SD on June 4, 2026 — up to 1.00"
Disputing a claim at a Keystone address?
This page covers the city. A claim is argued about one property, so start with the free address check — it counts the recorded events around your address, not the city centroid.
Check hail at your Keystone address — free
Type a street address. We measure it against every hail
event the National Weather Service recorded in the last 10 years and show you how many fall
within 1, 3 and 10 miles — free, instantly, nothing stored. Rural property with no street address?
Enter coordinates as 44.05, -107.31.
Address lookup by the U.S. Census Bureau geocoder. Records: NOAA NCEI Storm Events (final) plus SPC preliminary reports for storms newer than the latest compile — see methodology.
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source: NOAA NCEI Storm Events computed 2026-07-25