On the evening of August 1, 2025 — forty years to the day after the flood-and-hail disaster that killed twelve people here in 1985 — a supercell parked over Cheyenne, dropped baseball-size hail on downtown and three-inch stones near Burns, and spun up four funnel clouds for good measure. State Farm alone logged 280 claims within two days and declared the storm a catastrophe. A year later, the roofs that went uninspected after that night are quietly aging toward their next failure. Here is what the storm taught us, and what it should change about how Cheyenne homeowners treat hail.
What August 1, 2025 Actually Did
The National Weather Service in Cheyenne logs it simply as the “August 1 — Cheyenne Supercell & Hailstorm.” On the ground it was less tidy: baseball-size hail across downtown, smashed home and vehicle windows, dented hoods, and damage to roofs, gutters, and siding across the city, with the largest stone of the night — three inches — falling southwest of Burns, east of town. Four funnel clouds were spotted; none touched down.
The insurance ledger tells the rest. By the Saturday after the storm State Farm had roughly 136 claims; by the next morning, about 280 and climbing, and the company declared the event a catastrophe — a designation it reserves for storms causing at least $25 million in property damage. That is one carrier, in a city of sixty-five thousand people, from one evening of weather.
Cheyenne Is the Hail Capital for a Reason
None of this was unusual, which is the point. The corner where Wyoming, Colorado, and Nebraska meet is “Hail Alley,” averaging seven to nine hail days per year per NOAA’s National Severe Storms Laboratory — the most hailstorms anywhere in the country. The NWS Cheyenne hail climatology puts six or more severe-hail days a year in the Cheyenne vicinity, with June the busiest month and July close behind, and quarter-size the most commonly reported severe stone. Cheyenne is often called the most hail-prone city in America, averaging nine to ten hailstorms a season.
And the 2025 storm’s anniversary was not a coincidence anyone here missed: on August 1, 1985, a supercell stalled over Cheyenne for hours, dropped hail that piled a foot deep and drifted to six feet, put down six inches of rain, and killed twelve people. The 2025 storm was gentler. The forty-year symmetry is a reminder that this city’s weather has a long memory, and its roofs need one too.
The Damage You Cannot See From the Driveway
The most useful hail research of 2025 was not about giant stones. The Insurance Institute for Business & Home Safety found that high concentrations of small, sub-severe hail — stones of 0.7 to 1 inch — strip more granules cumulatively than a single two-inch impact, and that shingles weathered by sun and small hail were roughly ten times more susceptible to damage when severe hail arrived later. In plain terms: the storm that “didn’t do anything” to your roof may have spent its next storm’s protection.
That is why we inspect from the roof, not the truck. IBHS classifies hail damage as granule loss, dents, and tears or cracks — and the first category, the one that ages a roof fastest in Cheyenne’s climate, is invisible from the ground. After any storm with stones near the National Weather Service’s one-inch severe threshold, the honest move is a documented inspection: photos of every slope, a straight answer on whether the damage justifies a claim, and a written record that fixes the storm date if you need it later. Our hail damage guide walks through the inspection and claim process step by step.
What to Build With, in a Town Like This
Impact-rated shingles earn their keep here. Class 4 — the top rating under the UL 2218 test, which drops a two-inch steel ball on the shingle — is the standard we quote alongside conventional architectural shingles on every Cheyenne replacement, and it pairs with the high-wind fastening this corridor demands anyway. Wind and hail arrive together here; a shingle that shrugs off stones but lifts at the edges in a chinook has solved half the problem. Our Wyoming high-wind roofing guide covers the ratings and fastening specs in detail.
Read Your Policy Before the Next Storm, Not After
Two fine-print items are worth checking this week, while the sky is clear. First, many insurers now apply a separate wind/hail deductible, often set as a percentage of your dwelling coverage rather than a flat dollar figure — on a $400,000 home, a two-percent deductible means $8,000 out of pocket before coverage starts. Second, if you have a metal roof, look for a cosmetic-damage exclusion: an endorsement, common since 2013, that lets a carrier deny hail dents that mar the panels without breaching them. Neither is a Wyoming law; both are policy choices you can ask your agent about, and both change the math on what you should do after the next August 1.
If your roof went uninspected after the 2025 storm, or you want a baseline before this season does its worst, request a free inspection. Our Cheyenne crew documents everything with photos and tells you plainly whether you have a repair, a claim, or nothing to worry about.
Frequently Asked Questions
Was the August 2025 Cheyenne hailstorm bad enough to damage roofs?
Yes. Baseball-size hail fell on downtown Cheyenne and three-inch stones fell near Burns; State Farm alone recorded roughly 280 claims within two days and declared the storm a catastrophe, its designation for events causing at least $25 million in property damage. Hail that size damages asphalt roofs it hits squarely.
How often does Cheyenne actually get hail?
More than almost anywhere in America. NWS Cheyenne’s climatology counts six or more severe-hail days a year in the Cheyenne vicinity, with June and July the peak months, and the city sits in “Hail Alley,” which NOAA says averages seven to nine hail days per year — the most in the country.
My roof looked fine after the storm. Is it?
Possibly not. IBHS research published in 2025 found that accumulations of small, sub-severe hail strip granules cumulatively and left weathered shingles roughly ten times more susceptible to damage in a later severe storm. Granule loss is invisible from the ground; a from-the-roof inspection is the only way to know.
What size hail damages an asphalt roof?
The National Weather Service treats one inch as the severe threshold, and damage risk climbs steeply with size — but the 2025 IBHS findings show even sub-inch hail ages a roof cumulatively. Size alone doesn’t decide it: shingle age, weathering, and wind all factor in, which is why documentation beats guesswork.
Are Class 4 impact-resistant shingles worth it in Cheyenne?
In the most hail-prone city in America, usually yes. Class 4 is the top rating under UL 2218’s two-inch steel-ball test, and it pairs naturally with the high-wind fastening this corridor requires. Ask your insurance agent whether your policy discounts impact-rated roofs before you decide.
What is a cosmetic-damage exclusion?
A policy endorsement, common since 2013, that lets an insurer decline hail damage that dents a roof — typically metal — without compromising its function. If you own or are considering a metal roof in hail country, ask your agent whether your policy carries one; it changes what a claim will pay after a storm like August 2025.
