Hail history for Lake County, Montana
Every NOAA hail report filed in Lake County since 1962, with preliminary National Weather Service reports to November 3, 2026.
Readout · Lake County
- Last hail
- Aug 19, 2024
- 1.50 in, ping pong ball size
- Hail days, last 5 years
- 6
- since Nov 3, 2021 · 11 reports
- Largest ever
- 2.00 in
- hen egg · Jul 25, 2011
48 reports on 33 days since 1962 · #47 of 57 Montana counties
Hail map · Lake 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 Lake County
The latest hail report in Lake County is from August 19, 2024, 1.50 in (ping pong ball size). Since November 3, 2021 there have been 6 separate hail days; the biggest stones in that time were 1.50 in on August 19, 2024.
Over the 20 years 2006–2025, Lake County logged 32 reports on 18 hail days, about 1.6 reports a year. That is about half the median Montana county (3.0 a year) and ranks #47 of 57 Montana counties for all-time reports. Lake County holds 1% of all 8,453 hail reports in Montana.
2% 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 2.00 in (hen egg) on July 25, 2011 near 8.4 ESE Rollins.
Reports were down 40% in 2016–2025 (12) compared with 2006–2015 (20). The busiest year was 2022, with 9 reports on 5 days. Hail here peaks in July (48% of reports); 33% fall between April and June.
Reports a year 2006–2025 average
- Lake County 1.6
- Median Montana county 3.0
Hail days 2006–2025
- Lake County 18
- Median Montana county 31
Share 2 in or larger of sized reports
- Lake County 2%
- Median Montana county 7%
Hail over time
| Year | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Total |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2026 | 0 | ||||||||||||
| 2025 | 0 | ||||||||||||
| 2024 | 2 | 2 | |||||||||||
| 2023 | 0 | ||||||||||||
| 2022 | 1 | 7 | 1 | 9 | |||||||||
| 2021 | 0 | ||||||||||||
| 2020 | 1 | 1 | |||||||||||
| 2019 | 0 | ||||||||||||
| 2018 | 0 | ||||||||||||
| 2017 | 0 |
Hail days since Nov 3, 2021
| Date | Reports | Largest | Storm page |
|---|---|---|---|
| Aug 19, 2024 | 2 | 1.50 in | — |
| Aug 25, 2022 | 1 | 1.50 in | — |
| Jul 9, 2022 | 2 | 1.50 in | — |
| Jul 8, 2022 | 3 | 1.00 in | — |
| Jul 7, 2022 | 2 | 1.25 in | — |
| Jun 18, 2022 | 1 | 1.00 in | — |
Largest hail on record
| Date | Size | Location | Damage | Time · source |
|---|---|---|---|---|
| Jul 25, 2011 | 2.00 inhen egg | 8.4 ESE Rollins | — | 21:30 local · NCEI |
| Jul 31, 2010 | 1.75 ingolf ball | 1.16 NW Charlo | $6K | 16:34 local · NCEI |
| Jun 27, 2002 | 1.75 ingolf ball | Charlo | — | 17:41 local · NCEI |
| Jul 16, 1989 | 1.75 ingolf ball | — | — | 15:30 local · NCEI |
| Aug 19, 2024 | 1.50 inping pong ball | 11.35 NW Swan Lake | — | 18:00 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 17 35%
- 1–2 in 30 63%
- 2 in + 1 2%
Most recent reports
| Date | Size | Location | Damage | Time · source |
|---|---|---|---|---|
| Aug 19, 2024 | 1.50 inping pong ball | 11.35 NW Swan Lake | — | 18:00 local · NCEI |
| Aug 19, 2024 | 1.50 inping pong ball | 2.07 N Moiese | — | 16:55 local · NCEI |
| Aug 25, 2022 | 1.50 inping pong ball | 1 N Moiese | $5K | 16:35 local · NCEI |
| Jul 9, 2022 | 1.50 inping pong ball | 11.22 NNE Rollins | $1K | 16:01 local · NCEI |
| Jul 9, 2022 | 0.50 inmarble | 8.5 ENE Polson Arpt | — | 15:34 local · NCEI |
| Jul 8, 2022 | 1.00 inquarter | 2.35 N Post Creek | — | 15:15 local · NCEI |
| Jul 8, 2022 | 1.00 inquarter | 3.39 SSE Ravalli | — | 14:55 local · NCEI |
| Jul 8, 2022 | 1.00 inquarter | 0.41 NNW Charlo | — | 00:48 local · NCEI |
| Jul 7, 2022 | 1.00 inquarter | 11.04 N Rollins | — | 18:55 local · NCEI |
| Jul 7, 2022 | 1.25 inhalf dollar | 16.15 SW Elmo | — | 18:41 local · NCEI |
| Jun 18, 2022 | 1.00 inquarter | 76.77 NNW Southern Cross | — | 12:20 local · NCEI |
| Jun 24, 2020 | 1.25 inhalf dollar | 6.01 SSW Big Arm | — | 14:56 local · NCEI |
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 |
|---|---|---|---|
| Charlo | 5 | 5 | Jul 8, 2022 |
| Arlee | 3 | 3 | Jun 18, 2022 |
| Bear Dance | 3 | 2 | Jul 17, 2013 |
| Big Arm | 3 | 3 | Jul 25, 2011 |
| Ronan | 3 | 3 | Jun 12, 2006 |
| St. Ignatius | 3 | 3 | Jul 19, 2011 |
| Finley Point | 2 | 2 | Jul 9, 2022 |
| Kicking Horse | 2 | 2 | Jul 8, 2022 |
| Polson | 2 | 2 | Aug 7, 1997 |
| Ravalli | 2 | 2 | Jul 8, 2022 |
| Dayton | 1 | 1 | Aug 19, 2004 |
Questions about hail in Lake County
How often does it hail in Lake County, Montana?
48 hail reports have been logged in Lake County since 1962. Over the 20 years 2006–2025 that averages 1.6 reports a year. That ranks #47 of 57 Montana counties by number of reports.
When is hail season in Lake County?
Most reports come in July, June, August. July alone accounts for 48% of all reports.
What is the largest hail recorded in Lake County?
2.00 in (hen egg size) on July 25, 2011 near 8.4 ESE Rollins. 2% of reports here were 2 inches or larger.
When did it last hail in Lake County?
The most recent report in this data is from August 19, 2024 (1.50 in). Final NOAA data runs to July 31, 2026; preliminary NWS reports run to November 3, 2026.
How many hail storms has Lake County had in the last five years?
6 separate days with hail reports since November 3, 2021, adding up to 11 reports. The most recent was August 19, 2024.
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.