Hail Reports in Ames, Iowa — Last 90 Days

Ames is not hail alley, but it is not exempt either — the area averages about 5 hail-producing storms a year. When a cell does track over the county, the reports below tell you the date, the stone size, and how close it came.

Ames's Storm-Climate Context

Ames sits in a humid continental climate where roofs face punishment from all directions. The record high of 109 F on July 24, 1901 drives UV degradation and thermal cycling, while the record low of -37 F on January 25, 1894 tests every seal and fastener. Average annual snowfall of 28.3 inches means repeated snow-load stress followed by freeze-thaw cycles that work water under shingles and expand flashing gaps. Central Iowa's hail-prone spring season compounds granule loss on asphalt shingles. Combined, the wide temperature swing and significant snowpack make roof inspections after each winter and after major hailstorms a practical necessity.

Ames reported a 2020 census population of 66,427. Iowa State University is the city's dominant employer at 18,212 workers, followed by Mary Greeley Medical Center (1,407) and the City of Ames (1,382). The university drives a large and stable rental-housing stock where property managers must maintain roofs on a defined cycle, creating steady contractor demand. Historically low unemployment supports homeowner investment in repairs and replacements.

Hail Events Near Ames by Date

September 8, 2026 — 6 reports, hail up to 2.25″ (golf-ball size)

July 20, 2026 — 6 reports, hail up to 2.75″ (baseball size) Largest in 90 days

July 2, 2026 — 1 report, hail up to 1.00″ (quarter size)

Preliminary Local Storm Reports from the NOAA Storm Prediction Center. Sizes are reported hailstone diameters; times are UTC. Reports can be added or corrected for about a day after each event. A quiet page section ≠ no hail — smaller or unreported events happen. The closest report in this window landed 11.2 miles from Ames's center.

Circle positions are the NOAA SPC report coordinates; tap a circle for the date and hail size.

Hail size: < 1″ 1–1.75″ ≥ 2″ not recorded

How Severe Was It? The NWS Yardstick, Applied to Ames's Reports

The National Weather Service calls hail severe at 1″ (quarter size) and significant at 2″ (hen-egg size). Scoring the 13 Ames-area reports (filed in Boone, Hamilton, Polk, Story Counties) against that scale: 4 reached the significant 2″+ tier — stones that crack shingles and break skylights outright, not just bruise them, plus 9 in the severe 1″–2″ band. Damage at these sizes is rarely visible from the ground but is typically covered by homeowners insurance when documented promptly.

What to Do If Your Roof Was in the Hail Path

1. Do a ground-level walk-around. Hail is rare enough around Ames that most homeowners never think to check — look for granules collecting at downspouts, dented gutters or screens, and battered plants after the September 8, 2026 reports above. Stay off the roof itself.
2. Photograph anything suspicious with dates. Even minor-looking marks matter later: this NOAA log plus dated photos connect the damage to a covered storm event instead of "gradual wear", which insurers exclude.
3. Book a free inspection rather than guessing. Bruised shingles and granule loss are invisible from the ground; a written scope from a local roofer settles whether there is a claim at all.
4. Only involve the insurer once you know the scope. If the inspection finds nothing, you have lost nothing; if it finds damage, file within your policy's window while the event date is easy to prove.
5. Bring the written scope to the adjuster. Full walkthrough in the roof insurance claim guide.

Hail History in Ames — the 10-Year Picture

The county behind Ames has logged 111 hail events over the last decade — a pace of roughly 11 per year — with the most severe stone measured at 2.50″. Against that 10-year baseline, the 3 hail days in this 90-day window run above the long-term average rate. Ames averages 5 hail-producing storms per year — check hail risk lookup for your address.

Compared to the Iowa county median of 60 hail events over 10 years, Ames's county runs 1.9× above average — an exposure level that pushes local insurers toward higher wind-and-hail premium tiers and makes impact-resistant shingles a cost-effective upgrade.

Ames's County, Year by Year (NOAA Archive)

NOAA Storm Events archive, Ames's county. Years with no row logged no hail events.

2023 was the county's standout hail year on both counts: the most recorded events (36) and the largest stone (2.50″). Roofs installed before that season have already survived the local worst case — or absorbed damage that was never inspected.

Hail in Ames — Questions Homeowners Ask

Check Your Own ZIP in Ames

The county-level history above averages over the whole area. For a score tied to your address, run your ZIP through the hail risk lookup — Ames ZIP codes include 50010, 50011, 50014, 500106, 50012.

Ames Neighborhoods — Hail Exposure Varies by Area

Hail paths track with storm cell movement, not city limits. If you're in West Ames, Northwest Ames, Old Town Ames, East Village or College Green, check your specific street against the report locations above — distance from Ames's center is listed for each report.

More Resources

Roofing contractors in Ames · Storm damage repair in Ames · Insurance claim guide · Hail insurance claims in Iowa · Roof replacement costs in Ames · Emergency roof repair