The hardest part of a hail claim is rarely proving that a roof is worn. It is establishing that a specific storm caused the damage. Asphalt shingles are ambiguous witnesses — granule loss can come from age, foot traffic, blistering or manufacturing defects, and adjusters routinely argue exactly that.
Soft metals do not have that ambiguity. Aluminum siding, gutter faces, downspouts, vent hoods, AC fins and metal fascia all take a clean impact impression and hold it. When those surfaces show a consistent pattern of round dents concentrated on one or two elevations, and the density and size of those impressions correspond to what is on the roof, you have a coherent picture of a single directional hail event rather than accumulated wear.
This is why a thorough inspection starts on the ground with the soft metals before anyone goes up. Those surfaces establish that hail of a particular size fell on this property, which direction it came from, and which slopes and walls were exposed to it. The roof inspection is then read in that context.
If you are trying to confirm when a hail event actually occurred at your address, the National Weather Service Chicago office publishes local event summaries that are useful for cross-checking against your own records.