Hail history for Flathead County, Montana
Every NOAA hail report filed in Flathead County since 1956, with preliminary National Weather Service reports to November 3, 2026.
Readout · Flathead County
- Last hail
- Jul 17, 2026
- 1.00 in, quarter size
- Hail days, last 5 years
- 5
- since Nov 3, 2021 · 7 reports
- Largest ever
- 2.75 in
- baseball · Jul 2, 1996
104 reports on 65 days since 1956 · #33 of 57 Montana counties
Hail map · Flathead County
- Under 1 in
- 1–1.75 in
- 1.75–2.5 in
- 2.5–4 in
- 4 in +
- No size
For homeowners
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What the record says about Flathead County
The latest hail report in Flathead County is from July 17, 2026, 1.00 in (quarter size). Since November 3, 2021 there have been 5 separate hail days; the biggest stones in that time were 2.50 in on July 7, 2022.
Over the 20 years 2006–2025, Flathead County logged 52 reports on 28 hail days, about 2.6 reports a year. That is 15% less than the median Montana county (3.0 a year) and ranks #33 of 57 Montana counties for all-time reports. Flathead County holds 1% of all 8,453 hail reports in Montana.
3% 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 2.75 in (baseball) on July 2, 1996 near 6 S Polebridge.
Reports were down 67% in 2016–2025 (13) compared with 2006–2015 (39). The busiest year was 2013, with 10 reports on 3 days. Hail here peaks in July (38% of reports); 35% fall between April and June.
Reports a year 2006–2025 average
- Flathead County 2.6
- Median Montana county 3.0
Hail days 2006–2025
- Flathead County 28
- Median Montana county 31
Share 2 in or larger of sized reports
- Flathead County 3%
- Median Montana county 7%
Hail over time
| Year | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Total |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2026 | 3 | 1 | 4 | ||||||||||
| 2025 | 1 | 1 | |||||||||||
| 2024 | 1 | 1 | |||||||||||
| 2023 | 0 | ||||||||||||
| 2022 | 1 | 1 | |||||||||||
| 2021 | 0 | ||||||||||||
| 2020 | 3 | 3 | |||||||||||
| 2019 | 0 | ||||||||||||
| 2018 | 0 | ||||||||||||
| 2017 | 1 | 1 |
Hail days since Nov 3, 2021
| Date | Reports | Largest | Storm page |
|---|---|---|---|
| Jul 17, 2026 | 1 | 1.00 in | — |
| May 28, 2026 | 3 | 1.25 in | — |
| May 11, 2025 | 1 | 1.00 in | — |
| Aug 19, 2024 | 1 | 1.00 in | — |
| Jul 7, 2022 | 1 | 2.50 in | — |
Largest hail on record
| Date | Size | Location | Damage | Time · source |
|---|---|---|---|---|
| Jul 2, 1996 | 2.75 inbaseball | 6 S Polebridge | — | 19:15 local · NCEI |
| Jul 7, 2022 | 2.50 intennis ball | 1.34 W Kalispell City Arpt | $1.5 million | 19:51 local · NCEI |
| Jul 14, 1966 | 2.50 intennis ball | — | — | 15:00 local · NCEI |
| Jun 24, 2020 | 1.75 ingolf ball | 3.03 SW Kila | $10K | 15:04 local · NCEI |
| Jul 17, 2013 | 1.75 ingolf ball | 3 ESE Creston | $5K | 14:40 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 36 35%
- 1–2 in 65 63%
- 2 in + 3 3%
Most recent reports
| Date | Size | Location | Damage | Time · source |
|---|---|---|---|---|
| Jul 17, 2026 | 1.00 inquarter | 2.43 S Lupfer | — | 20:58 local · NCEI |
| May 28, 2026 | 1.25 inhalf dollar | 1.4 WSW Kalispell City Arpt | — | 17:24 local · NCEI |
| May 28, 2026 | 1.25 inhalf dollar | 1.06 ENE Evergreen | $1K | 17:10 local · NCEI |
| May 28, 2026 | 0.88 innickel | 5.39 SSE Martin City | — | 16:21 local · NCEI |
| May 11, 2025 | 1.00 inquarter | 0.83 SSE Half Moon | — | 11:27 local · NCEI |
| Aug 19, 2024 | 1.00 inquarter | 0.83 SSE Half Moon | — | 18:43 local · NCEI |
| Jul 7, 2022 | 2.50 intennis ball | 1.34 W Kalispell City Arpt | $1.5 million | 19:51 local · NCEI |
| Jun 24, 2020 | 1.00 inquarter | Bigfork | — | 18:55 local · NCEI |
| Jun 24, 2020 | 1.00 inquarter | Hungry Horse | — | 16:00 local · NCEI |
| Jun 24, 2020 | 1.75 ingolf ball | 3.03 SW Kila | $10K | 15:04 local · NCEI |
| Jun 8, 2017 | 1.50 inping pong ball | 21.39 N Rollins | $30K | 16:39 local · NCEI |
| Jul 19, 2016 | 1.00 inquarter | 1.32 NW Somers | — | 20:37 local · NCEI |
Cities and towns in Flathead County
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 |
|---|---|---|---|
| Whitefish | 8 | 8 | Jul 27, 2012 |
| Columbia Falls | 7 | 6 | May 11, 2025 |
| Helena Flats | 7 | 7 | Jun 8, 2016 |
| West Glacier | 4 | 4 | Jun 13, 2006 |
| Lakeside | 3 | 3 | Jun 26, 2012 |
| Marion | 3 | 2 | Jun 26, 2012 |
| Polebridge | 3 | 3 | Jun 25, 2004 |
| Somers | 3 | 3 | Jul 7, 2022 |
| Evergreen | 2 | 2 | May 28, 2026 |
| Kila | 2 | 2 | Jun 24, 2020 |
| Olney | 2 | 2 | Jul 16, 2011 |
| Rhodes | 2 | 1 | Aug 29, 2013 |
| Coram | 1 | 1 | Jun 25, 2004 |
| Essex | 1 | 1 | Jul 4, 2008 |
| Pinnacle | 1 | 1 | May 19, 2002 |
Questions about hail in Flathead County
How often does it hail in Flathead County, Montana?
104 hail reports have been logged in Flathead County since 1956. Over the 20 years 2006–2025 that averages 2.6 reports a year. That ranks #33 of 57 Montana counties by number of reports.
When is hail season in Flathead County?
Most reports come in July, June, August. July alone accounts for 38% of all reports.
What is the largest hail recorded in Flathead County?
2.75 in (baseball size) on July 2, 1996 near 6 S Polebridge. 3% of reports here were 2 inches or larger.
When did it last hail in Flathead County?
The most recent report in this data is from July 17, 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 Flathead County had in the last five years?
5 separate days with hail reports since November 3, 2021, adding up to 7 reports. The most recent was July 17, 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.