Hail Reports in Ames, Iowa — Last 90 Days
NOAA Storm Prediction Center logged 6 hail reports within 25 miles of Ames across 1 storm day, most recently on September 8, 2026. Source: SPC Local Storm Reports (preliminary, may be revised).
Data as of October 24, 2026 (last successful NOAA check). The newest report in the feed is from Oct 23, 2026. The 90-day log is SPC preliminary data. The county history (2017 to June 2026) is the NOAA Storm Events archive, 2014–June 2026; it has no storms after it ends.
- 2.25 inlargest hail near the city, last 90 days (golf ball size)
- 27days with hail 1 in or larger in the county, 2014–June 2026
- 41days with 58+ mph thunderstorm wind, 2014–June 2026
- #65 of 209among the cities we cover, by hail days of 1 in or more
Has hail hit my Ames roof since it was installed?
County-level hail reports for Ames from the NOAA archive this page uses; a county report is not proof of damage at your Ames address.
When does hail hit Ames?
NOAA NCEI Storm Events, county level, 2014–June 2026
If insurance covers it, what do I pay in Ames?
Only if the claim is approved. The ACV math is a straight-line example over a 25-year life; insurers writing Ames policies use their own schedules, so check your policy.
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Hail near Ames in the last 90 days
- 2.25 inLargest hail in 90 days (golf-ball size)
- 1Hail day near Ames
- 6SPC reports
- September 8, 2026Most recent event
Around Ames, the NOAA Storm Prediction Center logged 6 hail reports within 25 miles between September 8 and September 8, 2026, spread over 1 storm day. That day brought stones of 1″ or more, and 0 of the 6 Ames reports with coordinates fell within 10 miles of the city center. In a typical year Ames sees about 5 hail-producing storms.
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.
How close the hail came
Of the 6 Ames reports, the closest landed 20.6 miles from the city center on September 8, 2026 (1.50″ at 2 E Ankeny). September 8, 2026 was the heaviest day around Ames, with 6 reports and a top stone of 2.25″. Near Ames, 1 of 1 hail day reached 1″ or larger.
| Distance from city center | Reports | Largest |
|---|---|---|
| Within 5 miles | 0 | — |
| Within 10 miles | 0 | — |
| Within 25 miles | 6 | 2.25″ |
Distances are straight-line from the city center to each SPC report point; reports without coordinates are left out of the table.
Hail events near Ames by date
September 8, 2026 6 reports, hail up to 2.25″ (golf-ball size)
| Time (UTC) | Hail size | Location | Distance from Ames |
|---|---|---|---|
| 2253 | 2.25″ | Ankeny, Polk County | 21.0 mi |
| 2317 | 1.75″ | 1 NW Bondurant, Polk County | 24.2 mi |
| 2308 | 1.50″ | 2 E Ankeny, Polk County | 20.6 mi |
| 2309 | 1.50″ | 3 E Ankeny, Polk County | 20.6 mi |
| 2309 | 1.25″ | 1 NW Bondurant, Polk County | 24.2 mi |
| 2310 | 1.25″ | 4 SE Ankeny, Polk County | 23.4 mi |
The Ames tables above list 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 log does not mean no hail: small or unreported events happen. The closest report in this window landed 20.6 miles from Ames's center.
View the 6 Ames-area reports on a map
On the Ames map, 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 Ames's 6 area reports (filed in Polk County) against that scale: 1 Ames report reached the significant 2″+ tier — stones that crack shingles and break skylights outright, not just bruise them, plus 5 in the severe 1″–2″ band. At these sizes, damage on a Ames roof is rarely visible from the ground, and homeowners policies typically cover it when it is documented promptly.
Hail history in Ames: the long picture
County-level NOAA records for the county behind Ames, 2014–June 2026. Each figure shows its source. Storms after the archive ends are not in these numbers. Ranks count from 1, the highest.
Ames against the 209 cities we cover
- #65of 209Days with hail 1 in or larger in Ames: middle
- #61of 209Days with hail 1.75 in or larger (golf ball) in Ames: middle
- #134of 209Days with 58+ mph thunderstorm wind in Ames: middle
- #61of 209Tornadoes in Ames: middle
- #97of 209Reported storm property damage in Ames: middle
- #149of 209Share of homes built before 1980 in Ames: middle
Hail events by year
| 2017 | 9 |
|---|---|
| 2018 | 30 |
| 2019 | 8 |
| 2020 | 15 |
| 2021 | 1 |
| 2022 | 3 |
| 2023 | 36 |
| 2024 | 9 |
| 2025 | 15 |
Ames's county peaked at 36 events in 2023, its busiest full year, out of 126 for 2017 to 2025. In 2017–2025, a 0 means the archive holds no event for that year.
Source: NOAA Storm Events Database, county level, 2017–2025Hail history at a glance
- 126Hail events in the county, since 2017 (NOAA)
- 2.50 inLargest hailstone on record
- Jun 20, 2025Last recorded event in the archive
For Ames's county, NOAA records a most severe stone of 2.50″ and 126 hail events since 2017, close to 13 every year. Set against that baseline, the 1 hail day near Ames in the 90-day window above runs below the long-term average rate. Check your own Ames address on the hail risk lookup.
Compared to the Iowa county median of 80 hail events since 2017, Ames's county runs 1.6× above average.
Three ways a storm reaches a roof
Hail
Ames's county days with at least one report at that size. Largest stone: 2.75 in.
Source: NOAA Storm Events Database, 2014–June 2026Thunderstorm wind
41 Ames's county days with 58+ mph
58 mph is the NWS severe threshold. Strongest gust on record in Ames's county: 100 mph on Aug 10, 2020.
Source: NOAA Storm Events Database, 2014–June 2026Tornadoes
12 in Ames's county
Strongest tornado in Ames's county: EF2 on the Enhanced Fujita scale.
Source: NOAA Storm Events Database, 2014–June 2026Peak storm month
May
In Ames's county, 76 of 259 hail, wind and tornado reports (29%) fell in May.
Source: NOAA Storm Events, 2014–June 2026Older homes
40% of Ames homes built before 1980
About 11,000 of Ames's 27,706 housing units (share times units, rounded). Median year built: 1991. Housing units, not roofs: many Ames homes have been re-roofed since.
Source: Census ACS (Ames city), 2019–2023Year-by-year table with the largest stone
| Year | Recorded hail events | Largest stone |
|---|---|---|
| 2025 | 15 | 1.50″ |
| 2024 | 9 | 1.25″ |
| 2023 busiest largest stone | 36 | 2.50″ |
| 2022 | 3 | 1.25″ |
| 2021 | 1 | 0.88″ |
| 2020 | 15 | 2.50″ |
| 2019 | 8 | 1.50″ |
| 2018 | 30 | 2.25″ |
| 2017 | 9 | 2.00″ |
NOAA Storm Events archive, Ames's county. Years missing from the table have no record in the archive. * 2026 covers only January to June: NOAA's file ends there, so it is not counted as the worst year or in the yearly average.
2023 was the standout hail year in Ames's county on both counts: the most recorded events (36) and the largest stone (2.50″).
In a market with repeat hail, impact-resistant Class 4 shingles often pay for themselves through insurer premium discounts — worth discussing with a Ames roofer if a recent event tips you into a replacement.
Story County fact sheet for Ames homeowners
Housing age, federal disaster declarations and your state's claim deadlines in one place. All three come from public records, county level.
How old are the roofs? Homes in Story County by decade built
| pre-1940 | 14.6% |
|---|---|
| 1940s | 2.6% |
| 1950s | 7.1% |
| 1960s | 9.6% |
| 1970s | 13.7% |
| 1980s | 7.6% |
| 1990s | 14.1% |
| 2000s | 15.2% |
| 2010s | 14.0% |
| 2020+ | 1.4% |
41,642 homes, median built in 1983. 47.5% date from before 1980 and 15.5% from 2010 on; 56.0% are owner-occupied. The most common decade is the 2000s.
Source: U.S. Census Bureau, American Community Survey · data as of ACS 5-yearFederal disaster declarations naming Story County
Since 2014 FEMA has named Story County 4 times, split 4 storm-type, 0 flood, 0 winter, 0 fire. Over the same stretch NOAA counts in Story County 27 hail days of 1 in or more, spread over 9 of 12 full years. The latest in Story County was 14 days ago.
Source: OpenFEMA Disaster Declarations Summaries · data as of declarations since 2014What to do if your roof was in the hail path
- Stay off the roof and read the yard instead. 20.6 miles from the Ames city center (2 E Ankeny, September 8, 2026) is where the nearest report fell in the last 90 days. Look at your Ames downspouts for granules and at gutters, vents and screens for dents.
- Document everything before any repair. September 8, 2026 is the worst day in the Ames log: 6 reports, largest 2.25 in. Dated photos, a hailstone next to a coin and this NOAA log tie the loss to a specific storm day.
- Have a roofer look before you decide. The single hail day near Ames reached 1 inch or more, yet from the ground a Ames roof can look fine while bruising and granule loss sit on it. Only a roofer's written scope shows whether there is a claim.
- Know the insurer's clocks in Iowa and your own. Hail last fell near Ames 47 days ago. The policy sets your reporting window, while Iowa law sets how fast the insurer must answer (page linked below).
- Bring the written scope to the adjuster. A Ames estimate stays honest when the adjuster receives your contractor's written scope. Step-by-step: the roof insurance claim guide.
Insurer clocks for Ames homeowners: rule text, quotes and links on the Iowa claim-deadlines page (checked 2026-10-09). Not legal advice.
Hail in Ames — questions homeowners ask
When did hail last hit Ames, IA?
How large was the hail near Ames?
Does homeowners insurance cover hail damage in Ames?
How often does hail hit the Ames area?
How near to Ames did the nearest hail report fall?
How long does an insurer in Iowa have to respond to a hail claim?
Has Story County had federal disaster declarations?
Check your own ZIP in Ames
The county figures above average over everything inside the county line. For a score tied to your Ames 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.
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More resources
- Roofing contractors in Ames
- Storm damage repair in Ames
- Roof repair in Ames
- Roof inspection in Ames
- Insurance claim guide
- Hail insurance claims in Iowa
- Roof replacement costs in Ames
- Emergency roof repair
- All recent hail reports
- Hail risk lookup
Sources: NOAA Storm Prediction Center Local Storm Reports (last 90 days, preliminary) and the NOAA NCEI Storm Events Database (county of the city, 2014–June 2026); U.S. Census Bureau American Community Survey 5-year estimates (housing). The Storm Events archive used here ends in 2025, so storms between that date and the start of the 90-day log are not shown. How we collect data. Are you a roofer in Ames? See how requests reach contractors.
How to cite this page
Free to quote with credit, under CC BY 4.0, no permission needed. The numbers are NOAA Storm Prediction Center preliminary reports: unverified, and not confirmed damage to any roof. This is not an official NOAA or NWS product.