How big was the hail on July 28, 2025?

The maximum estimated stone size anywhere in the country that day was 1.50 inches, over Billings, MT. 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 · July 28, 2025

Hail map — July 28, 2025

Name: US hail map — July 28, 2025
Creator: HailMate

NOAA radar detected hail of an inch or more over 24 cities across 6 states on July 28, 2025. The largest stones — 1.50″, half dollar size — fell over Billings, MT.

Hail swath map for Billings, MT on July 28, 2025 showing 1.50 inch hail. — Largest rendered swath of the day: Billings, MT — 1.50″ hail. Each city below has its own map for this storm.

States hit: 6
Cities hit: 24
Largest stone: 1.50″; half dollar size
Impact rating: 5/10; 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 July 28, 2025

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

Montana1 city · 1.50″Illinois19 cities · 1.00″Iowa1 city · 1.00″North Dakota1 city · 1.00″Minnesota1 city · 1.00″Michigan1 city · 1.00″

What people on the ground measured in the US on July 28, 2025

15 reports filed with the National Weather Service — 6 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.

3.50″ baseball size Public
5 NNE Cresbard, SD5:40 PM CDTFaulk County
Image of hail stone next to tape measure reported on Facebook.
2.75″ baseball size Trained Spotter
5 NE Cresbard, SD5:45 PM CDTFaulk County
2.75″ baseball size Public
2 E Chelsea, SD6:00 PM CDTSpink County
2.50″ hen egg size Trained Spotter
6 WSW Forestgrove, MT5:25 PM MDTFergus County
Spotter reported hail between 2 to 2.5 inches in diameter. The spotter also noted the hail punched a hole into their deck.
2.50″ hen egg size Public
4 ENE Burton, NE6:26 PM CDTKeya Paha County
Time estimated from radar.
2.00″ hen egg size Public
Joliet, MT10:35 PM MDTCarbon County
Image on Facebook shows hailstone sightly smaller than a tennis ball.
1.75″ golf ball size Public
1 S Saint Francis, SD4:21 PM CDTTodd County
Report from mPING: Golf Ball (1.75 in.).
1.75″ golf ball size Public
2 E Eden, SD5:26 PM CDTMarshall County
1.75″ golf ball size Public
2 E Chelsea, SD6:03 PM CDTSpink County
2 miles east of Chelsea on the south side of the SD Hwy 20 received crop damage.
1.75″ golf ball size Public
1 S Northville, SD6:09 PM CDTSpink County
1.75″ golf ball size Trained Spotter
Burke, SD6:15 PM CDTGregory County
15 minutes of hail varied in size from quarters to golf balls, with most of them quarter to half dollar sized.
1.75″ golf ball size Trained Spotter
3 WSW Lower Brule, SD6:50 PM CDTLyman County
1.75″ golf ball size Trained Spotter
5 WNW Roundup, MT7:17 PM MDTMusselshell County
Trees stripped badly.
1.75″ golf ball size Cocorahs
4 S Billings, MT10:30 PM MDTYellowstone County
Shredded leaves, car dents, damaged shingles.
1.50″ half dollar size Emergency Mngr
1 ENE Stephan, SD5:06 PM CDTHyde County

Showing the 15 largest of 61 hail reports filed that day.

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 July 28, 2025

NOAA radar put hail of an inch or more over 24 cities across 6 states on July 28, 2025. The largest stones — 1.50 inches, half dollar size — were over Billings, MT. Every state hit is listed on this page, and every city under it.

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