Hail History

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Hail history for Missoula County, MT

Last hail in the countyAug 14, 20261 in (quarter)
Hail days, last 12 months3
Largest hail since 20062.5 in (tennis ball)Jul 8, 2022
Hail days since 200634
Days with hail 1 inch or larger30
Damaging wind reports in the county47

64 hail reports in Missoula County since 2006 on 34 days. The largest stones measured 2.5 in (tennis ball) on Jul 8, 2022.

Cities in Missoula County

Recent hail in Missoula County

DateHail sizeWhereSource
Aug 14, 20261 in
quarter
Stark
1 hail report
NWS storm report (preliminary)
Aug 13, 20260.5 in
marble
Huson
1 hail report
NWS storm report (preliminary)
May 28, 20261 in
quarter
Clinton Eliott Airport
1 hail report
NOAA Storm Events
Jul 31, 20251.25 in
half dollar
Carlton, Grass Vly
2 hail reports
NOAA Storm Events

One row per day: the largest hail reported in the county that day, the places and the number of reports.

Hail days in Missoula County by year

3061073080931021131231314115216117181192012142223224125326

When hail season peaks in Missoula County

JanFebMarApr3May7Jun13Jul11AugSepOctNovDec

Damaging thunderstorm winds in Missoula County

47 reports of damaging thunderstorm wind in Missoula County since 2006, on 33 days. The strongest measured gust was 81 mph on Jul 24, 2024.

DateStrongest gustWhereSource
Jul 23, 202659 mph, measuredMissoula
1 wind report
NWS storm report (preliminary)
Jul 26, 202555 mph, estimatedNagos
1 wind report
NOAA Storm Events
Aug 23, 202467 mph, measuredDesmet, Seeley Lake Airport
2 wind reports
NOAA Storm Events
Aug 18, 202472 mph, measuredMissoula Southwest
1 wind report
NOAA Storm Events
Jul 24, 202481 mph, measuredLolo Hot Spgs
1 wind report
NOAA Storm Events
May 28, 202464 mph, estimatedPotomac
1 wind report
NOAA Storm Events
Aug 29, 202360 mph, estimatedLolo Hot Spgs, Seeley Lake Airport
2 wind reports
NOAA Storm Events
Aug 22, 202360 mph, estimatedLolo
1 wind report
NOAA Storm Events
Jul 1, 202164 mph, measuredMissoula Intl. Airport
1 wind report
NOAA Storm Events
Jun 13, 202163 mph, estimatedClearwater Junction
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 Missoula County; 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.

Data: NOAA NCEI Storm Events Database (final records through Jun 30, 2026) and National Weather Service Local Storm Reports (preliminary, since then).