How big was the hail on June 30, 2024?

The maximum estimated stone size anywhere in the country that day was 1.50 inches, over Waterbury, CT. 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 radar, ingested directly from the public NOAA archive. The estimated stone size 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 · June 30, 2024

Hail map — June 30, 2024

Name: US hail map — June 30, 2024
Creator: HailMate

NOAA radar detected hail of an inch or more over 23 cities across 6 states on June 30, 2024. The largest stones — 1.50″, half dollar size — fell over Waterbury, CT.

Hail swath map for Waterbury, CT on June 30, 2024 showing 1.50 inch hail. — Largest rendered swath of the day: Waterbury, CT — 1.50″ hail. Each city below has its own map for this storm.

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The June 30, 2024 swath — and every other storm since 2023 across your state
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States hit: 6
Cities hit: 23
Largest stone: 1.50″; half dollar size
Impact rating: 5/10; from stone size

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

Homeowners

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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'll have the date and the stone size in writing — which is the first thing an adjuster asks for.

States hit on June 30, 2024

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

Virginia3 cities · 1.50″Connecticut8 cities · 1.50″New Mexico1 city · 1.50″Maryland7 cities · 1.00″New Jersey3 cities · 1.00″Pennsylvania1 city · 1.00″

What people on the ground measured in the US on June 30, 2024

15 reports filed with the National Weather Service — 7 from trained observers or officials. These are measured stones, not radar estimates, so they are the closest thing to proof that hail actually reached the ground.

1.75″ golf ball size Trained Spotter
3 E Hysham, MT8:37 PM MDTTreasure County
Hail up to golf balls with 60 mph winds estimated.
1.50″ half dollar size Public
Hartville, WY3:25 PM MDTPlatte County
Largest stones up to ping pong ball sized.
1.25″ half dollar size Trained Spotter
1 SSW Bath, NH2:20 PM EDTGrafton County
1.25″ half dollar size Amateur Radio
5 E Easton, NH2:33 PM EDTGrafton County
Reported by Amateur Radio. Time estimated by radar.
1.25″ half dollar size Trained Spotter
2 NW Bryantown, MD8:33 PM EDTCharles County
1.00″ quarter size Broadcast Media
Brickerville, PA3:27 PM EDTLancaster County
Quarter size hail in Brickerville.
1.00″ quarter size Amateur Radio
1 N Warren, NH3:33 PM EDTGrafton County
Reported by Amateur Radio. Measured quarter-sized hail fell on Pine Hill Rd near the town transfer station. Hail shredded leaves. Time estimated by radar.
1.00″ quarter size Trained Spotter
Ennis, MT2:35 PM MDTMadison County
Delayed report. Quarter size hail falling in the Ennis area on Sunday afternoon.
1.00″ quarter size Park/Forest Srvc
2 NNW Guernsey, WY3:21 PM MDTPlatte County
Quarter sized hail at the Gurnsey State Park Dam.
1.00″ quarter size Trained Spotter
5 ESE Bozeman Hot Sprin, MT3:49 PM MDTGallatin County
Heavy rain with visibility estimated as low as half a mile. Dime to quarter sized hail is starting to accumulate on the ground.
1.00″ quarter size Trained Spotter
3 NE Annapolis, MD5:58 PM EDTAnne Arundel County
1.00″ quarter size Public
Bozeman, MT4:00 PM MDTGallatin County
Quarter sized hail and heavy rain reported in central Bozeman via social media.
1.00″ quarter size Amateur Radio
3 NE Auburn, NH6:54 PM EDTRockingham County
Reported by Amateur Radio. Social media photo of 1 inch hail on Flint Rd near the Candia Town Forest. Time estimated by radar.
1.00″ quarter size Trained Spotter
Deale, MD7:37 PM EDTAnne Arundel County
1.00″ quarter size Broadcast Media
Glen Allen, VA8:11 PM EDTHenrico County
Public report of quarter size hail relayed by broadcast media.

Showing the 15 largest of 24 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

September 30, 20261 city · 2.00″September 28, 20261 city · 1.00″September 27, 20264 cities · 1.00″September 26, 20261 city · 1.00″September 25, 20263 cities · 1.00″September 23, 20262 cities · 1.00″September 22, 202617 cities · 1.00″September 21, 202665 cities · 2.00″September 20, 20268 cities · 1.50″September 19, 202637 cities · 1.50″September 18, 202623 cities · 2.00″September 17, 202619 cities · 1.50″

Every state with hail on record →

FAQ

US hail on June 30, 2024

NOAA radar put hail of an inch or more over 23 cities across 6 states on June 30, 2024. The largest stones — 1.50 inches, half dollar size — were over Waterbury, CT. Every state hit is listed on this page, and every city under it.

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