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Hail history for Green Valley, MD

Last hail within 10 milesMay 3, 20251 in (quarter)

Hail days, last 12 monthsNone

Largest hail since 20062 in (hen egg)Jun 2, 2019

Hail days since 200622

Days with hail 1 inch or larger16

Tornadoes within 10 miles14

Damaging wind reports within 10 miles322

Hail has been reported within 10 miles of Green Valley on 22 days since 2006. The largest stones measured 2 in (hen egg) on Jun 2, 2019. Hail is most common here in June and April.

Recent hail near Green Valley

Date	Hail size	Where	Source
May 3, 2025	1 in quarter	Cedar Grove 1 hail report · closest 5 mi from Green Valley	NOAA Storm Events

One row per day: the largest hail reported that day within 10 miles, the places and the number of reports.

Hail days near Green Valley by year

When hail season peaks near Green Valley

Of the 22 hail days since 2006, most fell in June (6) and April (4).

Largest hail storms near Green Valley

Jul 4, 2007 · 2 in (hen egg) · Laytonsville (7 mi from Green Valley)

National Weather Service description (English): NWS Storm Survey revealed hen-egg size hail occurred between Laytonsville and Damascus.

Jun 2, 2019 · 2 in (hen egg) · Cedar Grove (5 mi from Green Valley)

National Weather Service description (English): Hail up to the size of hen eggs (2.0 in diameter) was reported.

Jun 29, 2012 · 1.75 in (golf ball) · Fountain Mills (2 mi from Green Valley)

Jul 3, 2014 · 1.75 in (golf ball) · Mt Airy (8 mi from Green Valley)

Apr 25, 2010 · 1.5 in (ping pong ball) · Damascus (6 mi from Green Valley)

Tornadoes within 10 miles of Green Valley

Date	Rating	Where	Path
May 3, 2021	EF0	Mt Pleasant 10 mi from Green Valley	0.8 mi long, 200 yd wide
Feb 7, 2020	EF1	Fountain Mills 3 mi from Green Valley	6.7 mi long, 150 yd wide
May 30, 2019	EF0	Reels Mill 7 mi from Green Valley	6.5 mi long, 75 yd wide
Nov 2, 2018	EF1	Long Corner 7 mi from Green Valley	0.6 mi long, 200 yd wide
Nov 2, 2018	EF2	Mt Airy 8 mi from Green Valley	4.9 mi long, 400 yd wide
Jun 20, 2015	EF0	Tuscarora 10 mi from Green Valley	1.5 mi long, 75 yd wide
Jun 1, 2012	EF0	Cedar Grove 7 mi from Green Valley	0.5 mi long, 75 yd wide
Jun 1, 2012	EF0	Purdum 4 mi from Green Valley	0.6 mi long, 150 yd wide
Jun 1, 2012	EF0	Mt Airy 9 mi from Green Valley	0.4 mi long, 100 yd wide
Jun 1, 2012	EF1	Watersville Jct 9 mi from Green Valley	2.1 mi long, 200 yd wide
Apr 16, 2011	EF1	New London 7 mi from Green Valley	1.2 mi long, 50 yd wide
Apr 16, 2011	EF1	New London 8 mi from Green Valley	4.4 mi long, 50 yd wide

Damaging thunderstorm winds near Green Valley

322 reports of damaging thunderstorm wind within 10 miles of Green Valley since 2006, on 138 days. The strongest measured gust was 71 mph on May 30, 2019.

Date	Strongest gust	Where	Source
Sep 3, 2026	damage reported	Buckeystown 1 wind report	NWS storm report (preliminary)
Sep 2, 2026	damage reported	Park Mills, Green Valley, Laytonsville 7 wind reports	NWS storm report (preliminary)
Aug 27, 2026	damage reported	Barnesville, Ballenger Creek, Park Mills 5 wind reports	NWS storm report (preliminary)
Aug 10, 2026	damage reported	Germantown, Frederick, Mount Airy 3 wind reports	NWS storm report (preliminary)
Jul 28, 2026	damage reported	Boyds, Germantown, Damascus 3 wind reports	NWS storm report (preliminary)
Jul 18, 2026	damage reported	Dickerson, Barnesville, Ballenger Creek 4 wind reports	NWS storm report (preliminary)
Jul 9, 2026	damage reported	Frederick 1 wind report	NWS storm report (preliminary)
Jun 11, 2026	60 mph, estimated	New Market 1 wind report	NOAA Storm Events
Jun 6, 2026	70 mph, estimated	Ijamsville, Barnesville, Fox Chapel 3 wind reports	NOAA Storm Events
May 20, 2026	60 mph, estimated	Frederick 1 wind report	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 Green Valley; 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 Green Valley.

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