StormProof → state hail → South Dakota 2021
South Dakota hail, 2021
280 NWS-recorded hail reports ≥1″ statewide across 36 storm days, the largest 4.50" in PENNINGTON County on August 26, 2021.
Most-hit counties, 2021
| County / zone | ≥1″ reports |
|---|---|
| PENNINGTON | 32 |
| CUSTER | 23 |
| PERKINS | 16 |
| MEADE | 14 |
| BROWN | 13 |
| MINNEHAHA | 11 |
Also on file for 2021: 380 severe thunderstorm-wind events (≥50 kt ≈ 58 mph) statewide.
Metro detail: Rapid City · Sioux Falls
Working South Dakota claims from 2021?
Statewide counts set context; the claim file needs the per-address record with distances, narratives and citations. Reports generate in seconds and live on HailEvidence, the neutral evidence surface.
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Source: NCEI Storm Events Database, vintage c20260527, hail events with magnitude ≥1.00″. NWS records are point and path observations. The absence of a nearby report does NOT prove that no hail fell at this address — it means no observation was logged nearby. A report of nearby hail documents the event; it does not by itself prove damage to a specific structure.