StormProof → hail seasons → Denver → 2021
Denver hail season 2021
53 NWS-recorded hail reports ≥1″ within 35 miles, across 9 storm days, max 2.00". Every one of those reports is a dated, located, citable official record — the context behind this market's 2021 claim volume.
Biggest storm days (2021, final record)
| Date | ≥1″ reports | Max hail | Areas named in the record |
|---|---|---|---|
| August 19, 2021 | 22 | 2.00" | DOUGLAS, ADAMS, JEFFERSON, BROOMFIELD |
| June 13, 2021 | 20 | 1.75" | ARAPAHOE, DENVER, ADAMS |
| July 2, 2021 | 3 | 1.75" | ADAMS |
| September 3, 2021 | 2 | 1.00" | DOUGLAS, JEFFERSON |
| May 22, 2021 | 2 | 1.00" | DOUGLAS, ADAMS |
When it fell
Apr 1 · May 3 · Jun 22 · Jul 3 · Aug 22 · Sep 2
Wind context: the record also holds 9 thunderstorm-wind events ≥50 kt (≈58 mph, the NWS severe criterion) in this radius for 2021 — relevant where the dispute is wind vs hail causation.
Working a Denver claim from 2021?
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 35 miles of the Denver 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.