StormProof → hail seasons → Sioux Falls → 2001
Sioux Falls hail season 2001
31 NWS-recorded hail reports ≥1″ within 25 miles, across 5 storm days, max 2.75". Every one of those reports is a dated, located, citable official record — the context behind this market's 2001 claim volume.
Biggest storm days (2001, final record)
| Date | ≥1″ reports | Max hail | Areas named in the record |
|---|---|---|---|
| June 12, 2001 | 25 | 2.75" | LYON, ROCK, MINNEHAHA, LINCOLN |
| June 13, 2001 | 3 | 1.00" | MINNEHAHA, ROCK |
| August 29, 2001 | 1 | 1.00" | MINNEHAHA |
| June 10, 2001 | 1 | 1.75" | MINNEHAHA |
| June 9, 2001 | 1 | 1.00" | MINNEHAHA |
“Large hail caused considerable damage to crops. Some soybean crops were destroyed. Corn crops affected were expected to recover, according to the county extension agent, because the crops were young, with the growing point still below the ground and able to produce new stalks. Therefore, the amount of crop damage was not known.”
— NWS event narrative, June 12, 2001 (NCEI Storm Events)
When it fell
Jun 30 · Aug 1
Wind context: the record also holds 20 thunderstorm-wind events ≥50 kt (≈58 mph, the NWS severe criterion) in this radius for 2001 — relevant where the dispute is wind vs hail causation.
Working a Sioux Falls claim from 2001?
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 Sioux Falls 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.