How big was the hail on August 14, 2025?

The maximum estimated stone size anywhere in the country that day was 1.00 inches, over Boston, MA. 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 · August 14, 2025

Hail map — August 14, 2025

Name: US hail map — August 14, 2025
Creator: HailMate

NOAA radar detected hail of an inch or more over 21 cities across 3 states on August 14, 2025. The largest stones — 1.00″, quarter size — fell over Boston, MA.

Hail swath map for Boston, MA on August 14, 2025 showing 1.00 inch hail. — Largest rendered swath of the day: Boston, MA — 1.00″ hail. Each city below has its own map for this storm.

States hit: 3
Cities hit: 21
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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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 August 14, 2025

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

Massachusetts17 cities · 1.00″New York2 cities · 1.00″Mississippi2 cities · 1.00″

What people on the ground measured in the US on August 14, 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.

2.75″ baseball size Public
3 S Plummer, MN11:18 PM CDTRed Lake County
Photo of hail measuring 2.75 inches next to ruler south of Plummer collected 45 minutes after storm. Via social media. Time estimated from radar.
2.00″ hen egg size Public
1 N Red Lake Falls, MN11:00 PM CDTRed Lake County
Hail intermittent for 15 mins with stones ranging in size up to 2 inches.
1.75″ golf ball size Public
4 NNE Ghent, MN6:04 PM CDTLyon County
Report and photo via social media. Time estimated by radar.
1.50″ half dollar size Public
8 E Pierpont, SD2:00 AM CDTDay County
Hail up to ping pong ball size along with wind. Storms persisted for more than an hour. Wind driven hail caused significant crop damage, stripped leaves from trees, and damaged shingles. Radar estimated time.
1.50″ half dollar size Public
1 NW Rockland, MA7:26 PM EDTPlymouth County
1.25″ half dollar size Trained Spotter
6 NE Dawson, MN3:46 PM CDTLac qui Parle County
Spotter also estimated wind gusts of 60 mph.
1.25″ half dollar size Trained Spotter
3 S Ghent, MN6:48 PM CDTLyon County
Quarter to half dollar sized hail, along with moderate to heavy rain.
1.00″ quarter size NWS Employee
11 SE Matheson, CO5:05 PM MDTElbert County
Off duty NWS employee reported hail up to quarter size. Time and location estimated by radar.
1.00″ quarter size Trained Spotter
Ghent, MN6:31 PM CDTLyon County
Mostly dime sized hail, but a few quarter sized stones.
1.00″ quarter size Public
4 E Ardoch, ND8:19 PM CDTWalsh County
Public called in with report of hail around size of a quarter 4 miles east of Ardoch. Noted on minor crop damage as well. Time estimated from radar.
1.00″ quarter size Public
2 NE Sherack, MN9:45 PM CDTPolk County
A few stones up to an inch in size, mostly soft hail.
1.00″ quarter size Trained Spotter
1 ENE Euclid, MN10:21 PM CDTPolk County
Hailing at time of the report. Estimated size.
1.00″ quarter size Public
5 N Dorothy, MN10:34 PM CDTPennington County
Public report of about 20 minutes of light hail up to quarter-size. Via social media. Time estimated from radar.
1.00″ quarter size County Official
Oklee, MN11:45 PM CDTRed Lake County
0.88″ penny size Public
6 SSE Southeast Memphis, TN5:17 PM CDTShelby County

Showing the 15 largest of 18 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 August 14, 2025

NOAA radar put hail of an inch or more over 21 cities across 3 states on August 14, 2025. The largest stones — 1.00 inches, quarter size — were over Boston, MA. Every state hit is listed on this page, and every city under it.

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