117
Recorded events
0
Direct deaths
0
Direct injuries
$22K
Property damage
Hail in Missoula County, Montana: 117 recorded events between 1958 and 2025. The strongest on record measured 2.5. That places the county #1,227 nationally and #27 statewide for this hazard.
Decade by decade
Hail in Missoula County, Montana: events per decade
Reporting practice changed over time — early decades are undercounted, not calmer.
The busiest decade for hail in Missoula County is the 2000s, when 37 of the county's 117 recorded events were logged. Comparing decades is useful for spotting active periods, but the earliest years are thin because systematic reporting for this hazard began later.
Within the Missoula County archive, hail makes up 43.0% of all recorded severe weather across 10 hazard types. Nationally the county sits at #1,227 for this hazard and #27 within Montana, putting it in the 60.4 percentile of all U.S. counties.
Seasonality
Events by month
Jun is the peak month for hail in Missoula County with 38 recorded events, while Jan is the quietest. Seasonality here is a property of the archive as much as the climate: reports cluster where population and spotter networks are densest.
Most recent
Latest recorded events
| Date | Location | Magnitude | Damage |
|---|---|---|---|
| Aug 1, 2025 | GRASS VLY | 1 | $0 |
| Jul 31, 2025 | CARLTON | 1.25 | $0 |
| Aug 19, 2024 | HUSON | 1 | $0 |
| Aug 6, 2024 | FRENCHTOWN | 1 | $0 |
| Aug 6, 2024 | (MSO)MISSOULA INTL A | 1 | $0 |
| Jul 10, 2022 | CONDON USFS ARPT | 1.5 | $0 |
| Jul 9, 2022 | CLINTON | 1 | $0 |
| Jul 9, 2022 | CLEARWATER JUNCTION | 1.75 | $0 |
| Jul 9, 2022 | POTOMAC | 1 | $0 |
| Jul 9, 2022 | CLINTON | 1 | $0 |
Other hazards here
More from Missoula County
From the record
What the reports say
Written by National Weather Service staff at the time of the event · public domain
A slow-moving thunderstorm impacted the area northwest of Missoula, producing both large hail and heavy, localized rainfall. Quarter-sized (1.00 inch) hail was estimated via photos near the Frenchtown Mill. The storm's torrential downpour resulted in an official measurement of 0.92 inches at the Missoula International Airport (KMSO), with radar estimating up to 1.40 inches nearby. This intense rainfall overwhelmed drainage systems on Broadway, causing water to flood the eastbound lane. A downed tree was reported on the northbound lane of Highway 83 near milepost 31, north of Summit Lake.
A person from the public located in Missoula tweeted a photo of hail that appeared to be quarter size. There were multiple reports of nickel sized hail with some damage to gardens and vegetation. Intense rainfall was also produced by this storm, and the greater impact may have been street ponding.
A long-lasting right-moving supercell that tracked over the Missoula International airport continued east-northeast between Seeley Lake and Woodworth. A person from the public estimated penny sized hail just northwest of Woodworth that lasted for 5 minutes. The Missoula Doppler radar observed a three body scatter spike between 12 and 18 thousand feet MSL with this storm which is indicative of large hail.
Quick answers
Frequently asked
How many hail events are on record in Missoula County, Montana?
117 hail events are recorded in Missoula County between 1958 and 2025, causing 0 direct deaths.
What is the strongest hail recorded in Missoula County?
The strongest hail on record in Missoula County measured 2.5.
Where does the hail data for Missoula County come from?
All events come from the NOAA/NCEI Storm Events Database, the federal public-domain archive of severe weather reports. Dates are UTC, damage is as reported and not inflation-adjusted, and the most recent entries may still be revised.
Cite this page
“Hail in Missoula County, Montana.” Severe Weather History. severeweatherhistory.com/county/montana/missoula-county/hail/ · Data: NOAA/NCEI, FEMA, U.S. Census — public domain.