Hail History

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Hail history for Stony Brook, NY

Last hail within 10 milesJul 21, 20221.5 in (ping pong ball)
Hail days, last 12 monthsNone
Largest hail since 20061.75 in (golf ball)Aug 4, 2015
Hail days since 200612
Days with hail 1 inch or larger8
Tornadoes within 10 miles1
Damaging wind reports within 10 miles88

Hail has been reported within 10 miles of Stony Brook on 12 days since 2006. The largest stones measured 1.75 in (golf ball) on Aug 4, 2015. Hail is most common here in July and August.

Recent hail near Stony Brook

No hail was reported within 10 miles of Stony Brook in the last two years.

Hail days near Stony Brook by year

10607408109101111211314115161718191202122223242526

When hail season peaks near Stony Brook

Of the 12 hail days since 2006, most fell in July (5) and August (5).

JanFebMarAprMay2Jun5Jul5AugSepOctNovDec

Largest hail storms near Stony Brook

Aug 15, 2008 · 1.75 in (golf ball) · Miller Place (8 mi from Stony Brook)

National Weather Service description (English): Up to 2 inches of hail was reported covering the ground, ranging from pea to golf ball in size.

Aug 4, 2015 · 1.75 in (golf ball) · Mt Sinai (6 mi from Stony Brook)

Jun 26, 2009 · 1.5 in (ping pong ball) · East Setauket (2 mi from Stony Brook)

Jul 21, 2022 · 1.5 in (ping pong ball) · Hauppauge (9 mi from Stony Brook)

Aug 11, 2008 · 1.25 in (half dollar) · East Setauket (2 mi from Stony Brook)

Tornadoes within 10 miles of Stony Brook

DateRatingWherePath
Oct 2, 2018EF0Ronkonkoma
7 mi from Stony Brook		0.2 mi long, 200 yd wide

Damaging thunderstorm winds near Stony Brook

88 reports of damaging thunderstorm wind within 10 miles of Stony Brook since 2006, on 35 days. The strongest measured gust was 96 mph on Aug 4, 2015.

DateStrongest gustWhereSource
Jul 4, 2026damage reportedSunken Meadow Park, Smithtown, Lake Ronkonkoma
5 wind reports		NWS storm report (preliminary)
Jul 25, 202558 mph, estimatedCommack
1 wind report		NOAA Storm Events
Jun 19, 202558 mph, estimatedEast Northport
1 wind report		NOAA Storm Events
Mar 22, 202560 mph, measuredMc Arthur Field
1 wind report		NOAA Storm Events
Dec 31, 202461 mph, measuredNorthport
1 wind report		NOAA Storm Events
Jun 26, 202458 mph, estimatedEast Northport, East Setauket
2 wind reports		NOAA Storm Events
Aug 13, 202358 mph, estimatedOld Field
1 wind report		NOAA Storm Events
Jul 29, 202363 mph, estimatedStony Brook, East Setauket
3 wind reports		NOAA Storm Events
Sep 25, 202258 mph, estimatedRonkonkoma, St James
2 wind reports		NOAA Storm Events
Jul 26, 202264 mph, measuredOld Field
2 wind reports		NOAA Storm Events

Severe thunderstorm wind means gusts of 58 mph or more, or wind that caused damage. Measured gusts come from weather stations; estimated ones from spotters and damage surveys.

Filing a roof or car hail claim?

Insurers ask for the date of loss. The dates on this page are when hail was reported near Stony Brook; hail can hit one street and miss the next, so a report is not proof of damage at your address. A licensed roofer or your insurance adjuster can inspect the roof. Many policies set a time limit for filing a claim — check yours.

Nearby cities

Data: NOAA NCEI Storm Events Database (final records through Jun 30, 2026) and National Weather Service Local Storm Reports (preliminary, since then). Distances are measured from the center of Stony Brook.

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