Hail History

Home › Montana › Lewis And Clark County › Helena Valley Southeast

Hail history for Helena Valley Southeast, MT

Last hail within 10 milesSep 13, 20260.5 in (marble)
Hail days, last 12 months3
Largest hail since 20061.75 in (golf ball)Jul 2, 2013
Hail days since 200616
Days with hail 1 inch or larger14
Damaging wind reports within 10 miles34

Hail has been reported within 10 miles of Helena Valley Southeast on 16 days since 2006. The largest stones measured 1.75 in (golf ball) on Jul 2, 2013. Hail is most common here in July and June.

Recent hail near Helena Valley Southeast

DateHail sizeWhereSource
Sep 13, 20260.5 in
marble		East Helena
1 hail report · closest 2 mi from Helena Valley Southeast		NWS storm report (preliminary)
Jul 16, 20261 in
quarter		Clancy
2 hail reports · closest 9 mi from Helena Valley Southeast		NWS storm report (preliminary)
Jun 25, 20261 in
quarter		Iron, Helena Rgnl Airport, East Helena
3 hail reports · closest 2 mi from Helena Valley Southeast		NOAA Storm Events
Jul 28, 20251 in
quarter		Clancy
1 hail report · closest 7 mi from Helena Valley Southeast		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 Helena Valley Southeast by year

0620710810921021112213114151617181192021222324125326

When hail season peaks near Helena Valley Southeast

Of the 16 hail days since 2006, most fell in July (7) and June (4).

JanFebMarApr2May4Jun7Jul2Aug1SepOctNovDec

Largest hail storms near Helena Valley Southeast

Jul 2, 2013 · 1.75 in (golf ball) · Helena (6 mi from Helena Valley Southeast)

National Weather Service description (English): Hail measuring 1.75 inches was reported 9 mi NNE of Helena, MT.

Jun 16, 2007 · 1.5 in (ping pong ball) · Helena (6 mi from Helena Valley Southeast)

Jul 17, 2013 · 1.25 in (half dollar) · Helena (5 mi from Helena Valley Southeast)

May 30, 2008 · 1 in (quarter) · Helena (2 mi from Helena Valley Southeast)

Jul 6, 2009 · 1 in (quarter) · Clancy (9 mi from Helena Valley Southeast)

Damaging thunderstorm winds near Helena Valley Southeast

34 reports of damaging thunderstorm wind within 10 miles of Helena Valley Southeast since 2006, on 24 days. The strongest measured gust was 71 mph on Sep 2, 2026.

DateStrongest gustWhereSource
Sep 2, 202673 mph, estimatedHelena, East Helena
4 wind reports		NWS storm report (preliminary)
Aug 28, 202654 mph, measuredHelena
1 wind report		NWS storm report (preliminary)
Aug 26, 202648 mph, measuredHelena
1 wind report		NWS storm report (preliminary)
Jul 30, 202654 mph, measuredHelena
1 wind report		NWS storm report (preliminary)
Jul 23, 202662 mph, measuredHelena
2 wind reports		NWS storm report (preliminary)
Sep 14, 202558 mph, estimatedIron
1 wind report		NOAA Storm Events
Jul 9, 202558 mph, measuredLouisville
1 wind report		NOAA Storm Events
Jul 2, 202560 mph, measuredHelena Rgnl Airport
1 wind report		NOAA Storm Events
May 10, 202562 mph, measuredHelena Rgnl Airport
2 wind reports		NOAA Storm Events
Sep 11, 202463 mph, measuredHelena Rgnl Airport
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 Helena Valley Southeast; 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 Helena Valley Southeast.

Run a roofing company or a local news site? Show Helena Valley Southeast's hail history on your website with our free widget →

Roofing or restoration company? Get an email within the hour when hail is reported near Helena Valley Southeast with our hail alerts ($29 a month) →