StormProof → hail seasons → Rapid City → 2020
Rapid City hail season 2020
139 NWS-recorded hail reports ≥1″ within 25 miles, across 16 storm days, max 4.50". Every one of those reports is a dated, located, citable official record — the context behind this market's 2020 claim volume.
Biggest storm days (2020, final record)
| Date | ≥1″ reports | Max hail | Areas named in the record |
|---|---|---|---|
| July 10, 2020 | 25 | 3.25" | CUSTER, PENNINGTON, MEADE |
| July 6, 2020 | 17 | 2.75" | PENNINGTON, LAWRENCE, MEADE |
| June 4, 2020 | 16 | 2.75" | PENNINGTON, MEADE |
| July 5, 2020 | 12 | 2.50" | CUSTER, PENNINGTON |
| July 2, 2020 | 12 | 2.00" | CUSTER, PENNINGTON |
“Vehicle damage, including several broken windshields, was noted in the neighborhood.”
— NWS event narrative, July 10, 2020 (NCEI Storm Events)
When it fell
May 19 · Jun 36 · Jul 74 · Aug 10
Wind context: the record also holds 36 thunderstorm-wind events ≥50 kt (≈58 mph, the NWS severe criterion) in this radius for 2020 — relevant where the dispute is wind vs hail causation.
Working a Rapid City claim from 2020?
These are aggregates. A claim file needs the per-address record: every recorded event within 1, 3 and 10 miles of the property, distances, official narratives, and citations an adjuster can check line by line. That's the report — generated in seconds, hosted on HailEvidence (the neutral evidence surface), formatted as an insurance-appeal attachment.
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Provenance
Final counts: NCEI Storm Events Database, file vintage c20260527, hail events with recorded magnitude ≥1.00″ and point coordinates within 25 miles of the Rapid City anchor. 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. Spotted an error? Email the address on our terms page and we correct against the source.