How big was the hail on September 1, 2025?

The maximum estimated stone size anywhere in the country that day was 1.00 inches, over Youngstown, OH. Sizes vary street to street inside a single swath, so a city's figure is the largest radar estimated anywhere within about 5 miles of it.

Where does this hail data come from?

NOAA MRMS radar, specifically the Maximum Estimated Size of Hail product, ingested directly from the public NOAA archive. It runs about a quarter of an inch against ground truth, which makes it good for deciding where to look and not a substitute for an inspection.

Does this mean roofs were damaged?

Radar measures stone size, not damage. Whether a particular roof was damaged depends on stone size, wind direction, roof age and material — only an inspection settles it. These figures tell you where it is worth looking.

How do I see the actual swath on a map?

A HailMate plan puts a whole state on a real interactive map, with this swath and three years of others already on it. From $79/mo, and the canvassing tools come with it.

United States · September 1, 2025

Hail map — September 1, 2025

Name: US hail map — September 1, 2025
Creator: HailMate

NOAA radar detected hail of an inch or more over 3 cities across 2 states on September 1, 2025. The largest stones — 1.00″, quarter size — fell over Youngstown, OH.

Hail swath map for Youngstown, OH on September 1, 2025 showing 1.00 inch hail. — Largest rendered swath of the day: Youngstown, OH — 1.00″ hail. Each city below has its own map for this storm.

States hit: 2
Cities hit: 3
Largest stone: 1.00″; quarter size
Impact rating: 3/10; from stone size

Sizes come from NOAA MRMS radar (MESH), which runs about ±0.25″ against ground truth. It is canvass-targeting quality, not claim evidence.

Roofing contractors

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HailMate's canvassing map: hail swaths colour-banded by stone size, from yellow through red to purple, laid over a satellite view of a Texas territory, with hail swath and territory controls.

Your whole state at street level, with this storm already on it
Three years of hail swaths, filterable by stone size
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Homeowners

Did hail hit your address?

This page covers your area as a whole. Check your own address to see every storm on record for your roof — the date and the stone size for each one — and we'll email you the full report to keep.

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Free, and no account needed to look it up. If hail did hit, you can ask for a free inspection from a vetted local roofer.

States hit on September 1, 2025

Every state where NOAA radar put an inch or more of hail over a city that day, biggest stone first.

Ohio2 cities · 1.00″Kansas1 city · 1.00″

Hardest hit on September 1, 2025

Youngstown, OH1.00″ · quarter Austintown, OH1.00″ · quarter Dodge City, KS1.00″ · quarter

What people on the ground measured in the US on September 1, 2025

15 reports filed with the National Weather Service — 4 from trained spotters or officials. These are measured stones, not radar estimates, so they are the closest thing to proof that hail actually reached the ground.

4.00″ softball size Public
10 S Kingman, KS5:30 PM CDTKingman County
Delayed report - shared via KAKE on Facebook. Appeared close to 3.75 in. in image.
2.50″ hen egg size Trained Spotter
Attica, KS6:12 PM CDTHarper County
Hailstones range from quarter size to tennis ball size.
1.75″ golf ball size Public
3 W Bloom, KS2:45 PM CDTFord County
Corrects previous hail report from 3 W Bloom. Report made via social media.
1.25″ half dollar size Trained Spotter
Attica, KS6:08 PM CDTHarper County
1.25″ half dollar size Trained Spotter
6 S Mott, ND7:00 PM CDTHettinger County
Hail began at 6 PM MDT and lasted 5 minutes until 605 PM MDT. Hail started small and increased up to half dollar size before ending.
1.00″ quarter size Public
1 W Bloom, KS2:42 PM CDTFord County
1.00″ quarter size CO-OP Observer
Kingman, KS5:18 PM CDTKingman County
Large, irregular shaped hail. At least quarter size.
1.00″ quarter size Storm Chaser
3 NW Wichita Eisenhower, KS5:20 PM CDTSedgwick County
Delayed report. Occurred with 70 mph winds.
1.00″ quarter size Public
2 WSW Hannah, ND6:45 PM CDTCavalier County
Hailed about 15 minutes, with sizes ranging from under a quarter to near/slightly larger then a quarter. Significant damage to fields in the area, especially canola.
0.88″ penny size Public
2 W Middle River, MN11:30 PM CDTMarshall County
photo sent of hail. Also unofficial report of 5 inches of rain through 11 pm to 3 am.
0.75″ penny size Public
4 NW Haysville, KS5:15 PM CDTSedgwick County
Report from mPING.
0.75″ penny size Public
3 SW Wichita Eisenhower, KS5:28 PM CDTSedgwick County
Report from mPING.
0.70″ penny size NWS Employee
Dodge City, KS1:54 PM CDTFord County
0.70″ penny size Public
3 WSW Wichita Eisenhowe, KS5:28 PM CDTSedgwick County
0.25″ penny size Public
1 NW Dodge City, KS1:53 PM CDTFord County
Pea size hail reported by the Public.

Reports come from the National Weather Service Local Storm Report feed, ingested every 15 minutes. A report records where the observer was, not the full extent of the swath — treat it as evidence about the storm, not about any one roof.

Other hail days

August 19, 202620 cities · 2.00″August 18, 20266 cities · 1.50″August 17, 20266 cities · 1.00″August 16, 202610 cities · 1.50″August 15, 20268 cities · 1.50″August 14, 202611 cities · 2.00″August 13, 202616 cities · 2.00″August 12, 202610 cities · 1.50″August 11, 202633 cities · 2.00″August 10, 202623 cities · 1.50″August 9, 202649 cities · 1.50″August 8, 20265 cities · 1.50″

Every state with hail on record →

FAQ

US hail on September 1, 2025

NOAA radar put hail of an inch or more over 3 cities across 2 states on September 1, 2025. The largest stones — 1.00 inches, quarter size — were over Youngstown, OH. Every state hit is listed on this page, and every city under it.

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