Hail history for Missoula County, Montana
Every NOAA hail report filed in Missoula County since 1958, with preliminary National Weather Service reports to November 3, 2026.
Readout · Missoula County
- Last hail
- Aug 14, 2026
- 1.00 in, quarter size · preliminary
- Hail days, last 5 years
- 9
- since Nov 3, 2021 · 18 reports
- Largest ever
- 2.50 in
- tennis ball · Jul 8, 2022
119 reports on 73 days since 1958 · #28 of 57 Montana counties
Hail map · Missoula County
- Under 1 in
- 1–1.75 in
- 1.75–2.5 in
- 2.5–4 in
- 4 in +
- No size
For homeowners
Roof damage after hail? Get a free inspection
Hail bruises shingles and cracks seals in ways you can't see from the ground, and most insurers set a claim deadline after the storm. The latest hail report in Missoula County is from August 14, 2026. A local roofer can check and document it at no cost.
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What the record says about Missoula County
The latest hail report in Missoula County is from August 14, 2026, 1.00 in (quarter size). Since November 3, 2021 there have been 9 separate hail days; the biggest stones in that time were 2.50 in on July 8, 2022.
Over the 20 years 2006–2025, Missoula County logged 61 reports on 31 hail days, about 3.0 reports a year. That is about the same as the median Montana county (3.0 a year) and ranks #28 of 57 Montana counties for all-time reports. Missoula County holds 1% of all 8,453 hail reports in Montana.
8% of reports with a size were 2 inches (hen egg) or larger, against 7% for the median Montana county. The largest hail on record here is 2.50 in (tennis ball) on July 8, 2022 near 0.88 W Frenchtown.
Reports were down 44% in 2016–2025 (22) compared with 2006–2015 (39). The busiest year was 2006, with 12 reports on 3 days. Hail here peaks in July (35% of reports); 39% fall between April and June.
Reports a year 2006–2025 average
- Missoula County 3.0
- Median Montana county 3.0
Hail days 2006–2025
- Missoula County 31
- Median Montana county 31
Share 2 in or larger of sized reports
- Missoula County 8%
- Median Montana county 7%
Hail over time
| Year | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Total |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2026 | 1 | 1 | 2 | ||||||||||
| 2025 | 2 | 2 | |||||||||||
| 2024 | 3 | 3 | |||||||||||
| 2023 | 0 | ||||||||||||
| 2022 | 2 | 9 | 11 | ||||||||||
| 2021 | 1 | 1 | |||||||||||
| 2020 | 0 | ||||||||||||
| 2019 | 2 | 2 | |||||||||||
| 2018 | 0 | ||||||||||||
| 2017 | 1 | 1 |
Hail days since Nov 3, 2021
| Date | Reports | Largest | Storm page |
|---|---|---|---|
| Aug 14, 2026 | 1 | 1.00 in | View |
| May 28, 2026 | 1 | 1.00 in | — |
| Jul 31, 2025 | 2 | 1.25 in | — |
| Aug 19, 2024 | 1 | 1.00 in | — |
| Aug 6, 2024 | 2 | 1.00 in | — |
| Jul 9, 2022 | 2 | 1.50 in | — |
| Jul 8, 2022 | 5 | 2.50 in | — |
| Jul 7, 2022 | 2 | 1.00 in | — |
| Jun 18, 2022 | 2 | 1.25 in | — |
Largest hail on record
| Date | Size | Location | Time · source |
|---|---|---|---|
| Jul 8, 2022 | 2.50 intennis ball | 0.88 W Frenchtown | 14:18 local · NCEI |
| Jul 3, 1998 | 2.50 intennis ball | Missoula | 15:07 local · NCEI |
| May 25, 1998 | 2.50 intennis ball | Seeley Lake | 16:50 local · NCEI |
| Jun 29, 1982 | 2.50 intennis ball | — | 17:30 local · NCEI |
| Sep 12, 1958 | 2.25 inhen egg | — | 16:35 local · NCEI |
Sizes filed before 1996 are often rough estimates (round numbers like 7.00 or 8.00 in) without an exact spot; they are shown as NOAA filed them.
Size of every report
- Under 1 in 38 33%
- 1–2 in 69 59%
- 2 in + 9 8%
- No size 3
Most recent reports
| Date | Size | Location | Time · source |
|---|---|---|---|
| Aug 14, 2026 | 1.00 inquarter | 2 SE Stark | 22:12 UTC · NWS prelim. |
| May 28, 2026 | 1.00 inquarter | 5.09 SW Clinton Eliott Arpt | 17:47 local · NCEI |
| Jul 31, 2025 | 1.00 inquarter | 0.53 NE Grass Vly | 17:40 local · NCEI |
| Jul 31, 2025 | 1.25 inhalf dollar | 2.37 NNE Carlton | 16:46 local · NCEI |
| Aug 19, 2024 | 1.00 inquarter | 4.77 NNE Huson | 15:58 local · NCEI |
| Aug 6, 2024 | 1.00 inquarter | 0.33 S Frenchtown | 16:48 local · NCEI |
| Aug 6, 2024 | 1.00 inquarter | 2.19 SE (Mso)missoula Intl A | 15:20 local · NCEI |
| Jul 9, 2022 | 1.50 inping pong ball | 2.07 SE Condon Usfs Arpt | 17:48 local · NCEI |
| Jul 9, 2022 | 1.00 inquarter | 1.32 SE Clinton | 14:36 local · NCEI |
| Jul 8, 2022 | 1.75 ingolf ball | 4.3 NNW Clearwater Junction | 20:25 local · NCEI |
| Jul 8, 2022 | 1.00 inquarter | 1.04 WNW Potomac | 20:00 local · NCEI |
| Jul 8, 2022 | 1.00 inquarter | 1.28 SE Clinton | 19:35 local · NCEI |
Cities and towns in Missoula County
| Place | Reports | Largest |
|---|---|---|
| Missoula | 38 | 2.50 in |
Smaller places with fewer than 10 reports
These places have too few reports for a page of their own, so their record lives here.
| Place | Reports | Hail days | Latest |
|---|---|---|---|
| Lolo | 8 | 8 | Jul 19, 2011 |
| Seeley Lake | 7 | 6 | Jul 8, 2022 |
| Carlton | 5 | 5 | Jul 31, 2025 |
| Condon | 5 | 4 | Jul 9, 2022 |
| Evaro | 5 | 4 | Aug 19, 2008 |
| Huson | 5 | 2 | Jun 13, 2006 |
| Bonner-West Riverside | 4 | 4 | Jul 13, 2019 |
| Potomac | 4 | 4 | Jul 8, 2022 |
| Clinton | 3 | 3 | Jul 9, 2022 |
| Frenchtown | 3 | 3 | Jul 31, 2025 |
| Hungry Horse | 2 | 2 | Jun 24, 2020 |
| Wye | 2 | 2 | Aug 3, 2004 |
| Riverbend | 1 | 1 | Jun 13, 2006 |
| Twin Creeks | 1 | 1 | Jun 18, 2022 |
Questions about hail in Missoula County
How often does it hail in Missoula County, Montana?
119 hail reports have been logged in Missoula County since 1958. Over the 20 years 2006–2025 that averages 3.0 reports a year. That ranks #28 of 57 Montana counties by number of reports.
When is hail season in Missoula County?
Most reports come in July, June, August. July alone accounts for 35% of all reports.
What is the largest hail recorded in Missoula County?
2.50 in (tennis ball size) on July 8, 2022 near 0.88 W Frenchtown. 8% of reports here were 2 inches or larger.
When did it last hail in Missoula County?
The most recent report in this data is from August 14, 2026 (1.00 in). Final NOAA data runs to July 31, 2026; preliminary NWS reports run to November 3, 2026.
How many hail storms has Missoula County had in the last five years?
9 separate days with hail reports since November 3, 2021, adding up to 18 reports. The most recent was August 14, 2026.
Where does this hail data come from?
Hail reports come from the NOAA NCEI Storm Events Database, which the National Weather Service compiles from spotter, public, law enforcement and media reports. Recent days use preliminary NWS Local Storm Reports via the Iowa Environmental Mesonet until NOAA publishes final data. Only reported hail is counted, so areas with fewer people tend to have fewer reports.