Hail History

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Hail history for Merrimack, NH

Last hail within 10 milesSep 6, 20251.5 in (ping pong ball)
Hail days, last 12 monthsNone
Largest hail since 20061.75 in (golf ball)Jun 27, 2008
Hail days since 200627
Days with hail 1 inch or larger21
Damaging wind reports within 10 miles106

Hail has been reported within 10 miles of Merrimack on 27 days since 2006. The largest stones measured 1.75 in (golf ball) on Jun 27, 2008. Hail is most common here in July and August.

Recent hail near Merrimack

DateHail sizeWhereSource
Sep 6, 20251.5 in
ping pong ball		Manchester Muni
1 hail report · closest 7 mi from Merrimack		NOAA Storm Events
Aug 13, 20251 in
quarter		Baboosic
1 hail report · closest 5 mi from Merrimack		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 Merrimack by year

06207508109110211122133141516117181922012112232312422526

When hail season peaks near Merrimack

Of the 27 hail days since 2006, most fell in July (8) and August (7).

JanFebMarApr3May7Jun8Jul7Aug2SepOctNovDec

Largest hail storms near Merrimack

Jun 5, 2007 · 1.75 in (golf ball) · Derry (9 mi from Merrimack)

National Weather Service description (English): A severe thunderstorm produced 1.75 inch hail in Derry.

Jun 27, 2008 · 1.75 in (golf ball) · Derry (8 mi from Merrimack)

National Weather Service description (English): A severe thunderstorm produced 1.75 inch hail in Derry.

Jul 29, 2013 · 1.5 in (ping pong ball) · Hudson (8 mi from Merrimack)

Sep 6, 2025 · 1.5 in (ping pong ball) · Manchester Muni (7 mi from Merrimack)

Jul 7, 2009 · 1.25 in (half dollar) · Pine Hill (8 mi from Merrimack)

Damaging thunderstorm winds near Merrimack

106 reports of damaging thunderstorm wind within 10 miles of Merrimack since 2006, on 64 days. The strongest measured gust was 71 mph on Dec 23, 2022.

DateStrongest gustWhereSource
Jul 28, 2026damage reportedBedford, Londonderry
3 wind reports		NWS storm report (preliminary)
Jul 22, 2026damage reportedLitchfield, Nashua
2 wind reports		NWS storm report (preliminary)
Jul 16, 2026damage reportedBedford, Milford, Hollis
7 wind reports		NWS storm report (preliminary)
Jun 18, 202660 mph, estimatedDerry
1 wind report		NOAA Storm Events
Apr 14, 202660 mph, estimatedHollis
1 wind report		NOAA Storm Events
Sep 6, 202558 mph, estimatedMerrimack, Reeds Ferry, West Windham
3 wind reports		NOAA Storm Events
Aug 13, 202558 mph, estimatedBaboosic, Mt Vernon, Pine Hill
3 wind reports		NOAA Storm Events
Jul 20, 202558 mph, estimatedSouth Milford
1 wind report		NOAA Storm Events
Jul 3, 202560 mph, estimatedRichardson
1 wind report		NOAA Storm Events
May 3, 202560 mph, estimatedHudson Center
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 Merrimack; 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 Merrimack.

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