Hail history for Custer County, Montana
Every NOAA hail report filed in Custer County since 1958, with preliminary National Weather Service reports to November 3, 2026.
Readout · Custer County
- Last hail
- Jul 29, 2025
- 1.75 in, golf ball size
- Hail days, last 5 years
- 9
- since Nov 3, 2021 · 15 reports
- Largest ever
- 4.50 in
- softball · Aug 26, 1995
239 reports on 125 days since 1958 · #14 of 57 Montana counties
Hail map · Custer 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 Custer County is from July 29, 2025. A local roofer can check and document it at no cost.
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What the record says about Custer County
The latest hail report in Custer County is from July 29, 2025, 1.75 in (golf ball size). Since November 3, 2021 there have been 9 separate hail days; the biggest stones in that time were 2.50 in on August 21, 2024.
Over the 20 years 2006–2025, Custer County logged 129 reports on 55 hail days, about 6.5 reports a year. That is about twice the median Montana county (3.0 a year) and ranks #14 of 57 Montana counties for all-time reports. Custer County holds 3% of all 8,453 hail reports in Montana.
12% 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 4.50 in (softball) on August 26, 1995 near Miles City.
Reports held about level in 2016–2025 (63) compared with 2006–2015 (66). The busiest year was 2001, with 27 reports on 12 days. Hail here peaks in June (39% of reports); 52% fall between April and June.
Reports a year 2006–2025 average
- Custer County 6.5
- Median Montana county 3.0
Hail days 2006–2025
- Custer County 55
- Median Montana county 31
Share 2 in or larger of sized reports
- Custer County 12%
- Median Montana county 7%
Hail over time
| Year | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Total |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2026 | 0 | ||||||||||||
| 2025 | 3 | 5 | 8 | ||||||||||
| 2024 | 1 | 1 | |||||||||||
| 2023 | 1 | 1 | 1 | 3 | |||||||||
| 2022 | 3 | 3 | |||||||||||
| 2021 | 0 | ||||||||||||
| 2020 | 13 | 1 | 14 | ||||||||||
| 2019 | 1 | 1 | 3 | 1 | 1 | 7 | |||||||
| 2018 | 1 | 4 | 9 | 4 | 18 | ||||||||
| 2017 | 1 | 1 |
Hail days since Nov 3, 2021
| Date | Reports | Largest | Storm page |
|---|---|---|---|
| Jul 29, 2025 | 3 | 2.00 in | — |
| Jul 28, 2025 | 1 | 1.00 in | — |
| Jul 25, 2025 | 1 | 1.00 in | — |
| Jun 20, 2025 | 3 | 1.25 in | — |
| Aug 21, 2024 | 1 | 2.50 in | — |
| Jul 11, 2023 | 1 | 1.00 in | — |
| Jun 19, 2023 | 1 | 1.00 in | — |
| May 24, 2023 | 1 | 1.00 in | — |
| Jul 1, 2022 | 3 | 1.75 in | — |
Largest hail on record
| Date | Size | Location | Time · source |
|---|---|---|---|
| Aug 26, 1995 | 4.50 insoftball | Miles City | 18:15 local · NCEI |
| Jun 17, 2014 | 3.50 inteacup | 2.81 NW Ismay | 12:30 local · NCEI |
| Jun 26, 2019 | 2.75 inbaseball | 13.16 E Volborg | 18:19 local · NCEI |
| Jun 21, 2015 | 2.75 inbaseball | 7.49 NE Knowlton | 14:55 local · NCEI |
| Jun 5, 2015 | 2.75 inbaseball | 2.13 NNW Mizpah | 17:30 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 77 32%
- 1–2 in 134 56%
- 2 in + 28 12%
Most recent reports
| Date | Size | Location | Time · source |
|---|---|---|---|
| Jul 29, 2025 | 1.75 ingolf ball | 16.58 ENE Volborg | 15:49 local · NCEI |
| Jul 29, 2025 | 1.75 ingolf ball | 16.9 NNE Volborg | 15:42 local · NCEI |
| Jul 29, 2025 | 2.00 inhen egg | 4.06 ESE Sheffield | 14:33 local · NCEI |
| Jul 28, 2025 | 1.00 inquarter | 2.81 NW Ismay | 07:00 local · NCEI |
| Jul 25, 2025 | 1.00 inquarter | 2.81 NW Ismay | 16:03 local · NCEI |
| Jun 20, 2025 | 1.00 inquarter | 0.84 SE Miles City | 14:45 local · NCEI |
| Jun 20, 2025 | 1.25 inhalf dollar | 1.18 SE Miles City | 14:38 local · NCEI |
| Jun 20, 2025 | 1.00 inquarter | 0.84 NW Miles City | 14:37 local · NCEI |
| Aug 21, 2024 | 2.50 intennis ball | Volborg | 19:15 local · NCEI |
| Jul 11, 2023 | 1.00 inquarter | 7.06 SSE Miles City | 19:00 local · NCEI |
| Jun 19, 2023 | 1.00 inquarter | 2.13 NNW Mizpah | 18:35 local · NCEI |
| May 24, 2023 | 1.00 inquarter | 5.71 NNW Miles City Arpt | 17:45 local · NCEI |
Cities and towns in Custer County
| Place | Reports | Largest |
|---|---|---|
| Miles City | 63 | 2.50 in |
| Ismay | 11 | 3.50 in |
Questions about hail in Custer County
How often does it hail in Custer County, Montana?
239 hail reports have been logged in Custer County since 1958. Over the 20 years 2006–2025 that averages 6.5 reports a year. That ranks #14 of 57 Montana counties by number of reports.
When is hail season in Custer County?
Most reports come in June, July, August. June alone accounts for 39% of all reports.
What is the largest hail recorded in Custer County?
4.50 in (softball size) on August 26, 1995 near Miles City. 12% of reports here were 2 inches or larger.
When did it last hail in Custer County?
The most recent report in this data is from July 29, 2025 (1.75 in). Final NOAA data runs to July 31, 2026; preliminary NWS reports run to November 3, 2026.
How many hail storms has Custer County had in the last five years?
9 separate days with hail reports since November 3, 2021, adding up to 15 reports. The most recent was July 29, 2025.
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.