Hail history for Stillwater County, Montana
Every NOAA hail report filed in Stillwater County since 1958, with preliminary National Weather Service reports to November 3, 2026.
Readout · Stillwater County
- Last hail
- Aug 7, 2025
- 1.75 in, golf ball size
- Hail days, last 5 years
- 8
- since Nov 3, 2021 · 12 reports
- Largest ever
- 2.75 in
- baseball · Aug 11, 2019
185 reports on 97 days since 1958 · #19 of 57 Montana counties
Hail map · Stillwater 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 Stillwater County is from August 7, 2025. A local roofer can check and document it at no cost.
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What the record says about Stillwater County
The latest hail report in Stillwater County is from August 7, 2025, 1.75 in (golf ball size). Since November 3, 2021 there have been 8 separate hail days; the biggest stones in that time were 1.75 in on August 7, 2025.
Over the 20 years 2006–2025, Stillwater County logged 112 reports on 52 hail days, about 5.6 reports a year. That is 84% more than the median Montana county (3.0 a year) and ranks #19 of 57 Montana counties for all-time reports. Stillwater County holds 2% of all 8,453 hail reports in Montana.
5% 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 August 11, 2019 near 2.13 NNW Molt.
Reports held about level in 2016–2025 (54) compared with 2006–2015 (58). The busiest year was 2018, with 20 reports on 8 days. Hail here peaks in June (42% of reports); 54% fall between April and June.
Reports a year 2006–2025 average
- Stillwater County 5.6
- Median Montana county 3.0
Hail days 2006–2025
- Stillwater County 52
- Median Montana county 31
Share 2 in or larger of sized reports
- Stillwater County 5%
- Median Montana county 7%
Hail over time
| Year | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Total |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2026 | 0 | ||||||||||||
| 2025 | 4 | 1 | 5 | ||||||||||
| 2024 | 1 | 1 | |||||||||||
| 2023 | 1 | 1 | |||||||||||
| 2022 | 5 | 5 | |||||||||||
| 2021 | 1 | 1 | |||||||||||
| 2020 | 2 | 2 | 4 | ||||||||||
| 2019 | 1 | 1 | 5 | 4 | 11 | ||||||||
| 2018 | 5 | 2 | 13 | 20 | |||||||||
| 2017 | 1 | 1 |
Hail days since Nov 3, 2021
| Date | Reports | Largest | Storm page |
|---|---|---|---|
| Aug 7, 2025 | 1 | 1.75 in | — |
| Jun 13, 2025 | 4 | 1.75 in | — |
| Aug 6, 2024 | 1 | 1.00 in | — |
| Aug 6, 2023 | 1 | 1.50 in | — |
| Jul 24, 2022 | 1 | 1.00 in | — |
| Jul 15, 2022 | 1 | 1.00 in | — |
| Jul 5, 2022 | 1 | 1.00 in | — |
| Jul 3, 2022 | 2 | 1.75 in | — |
Largest hail on record
| Date | Size | Location | Time · source |
|---|---|---|---|
| Aug 11, 2019 | 2.75 inbaseball | 2.13 NNW Molt | 17:41 local · NCEI |
| Jun 6, 2011 | 2.75 inbaseball | 1.19 NW Columbus | 18:30 local · NCEI |
| Aug 11, 2019 | 2.00 inhen egg | 1.6 ESE Wheat Basin | 17:35 local · NCEI |
| Aug 11, 2019 | 2.00 inhen egg | 12.47 N Reed Pt | 16:55 local · NCEI |
| Jul 27, 2018 | 2.00 inhen egg | 5.71 SSE Columbus | 15:35 local · NCEI |
Size of every report
- Under 1 in 50 27%
- 1–2 in 125 68%
- 2 in + 9 5%
- No size 1
Most recent reports
| Date | Size | Location | Time · source |
|---|---|---|---|
| Aug 7, 2025 | 1.75 ingolf ball | 6.51 SSW Molt | 15:20 local · NCEI |
| Jun 13, 2025 | 1.50 inping pong ball | 5.19 SE Columbus | 17:28 local · NCEI |
| Jun 13, 2025 | 1.75 ingolf ball | 4.01 SE Columbus | 17:20 local · NCEI |
| Jun 13, 2025 | 1.25 inhalf dollar | 0.69 N Columbus | 17:15 local · NCEI |
| Jun 13, 2025 | 1.00 inquarter | 0.69 N Columbus | 17:06 local · NCEI |
| Aug 6, 2024 | 1.00 inquarter | 4.51 NE Absarokee | 18:15 local · NCEI |
| Aug 6, 2023 | 1.50 inping pong ball | 5.31 W Columbus | 17:45 local · NCEI |
| Jul 24, 2022 | 1.00 inquarter | 0.96 E Rapelje | 16:45 local · NCEI |
| Jul 15, 2022 | 1.00 inquarter | 1.69 SE Nye | 14:19 local · NCEI |
| Jul 5, 2022 | 1.00 inquarter | 0.48 E Rapelje | 00:18 local · NCEI |
| Jul 3, 2022 | 1.75 ingolf ball | 0.48 E Rapelje | 16:04 local · NCEI |
| Jul 3, 2022 | 1.75 ingolf ball | 0.96 E Rapelje | 16:03 local · NCEI |
Cities and towns in Stillwater 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 |
|---|---|---|---|
| Reed Point | 7 | 6 | May 19, 2020 |
| Nye | 6 | 5 | Jul 15, 2022 |
| Fishtail | 2 | 2 | May 9, 2018 |
Questions about hail in Stillwater County
How often does it hail in Stillwater County, Montana?
185 hail reports have been logged in Stillwater County since 1958. Over the 20 years 2006–2025 that averages 5.6 reports a year. That ranks #19 of 57 Montana counties by number of reports.
When is hail season in Stillwater County?
Most reports come in June, July, May. June alone accounts for 42% of all reports.
What is the largest hail recorded in Stillwater County?
2.75 in (baseball size) on August 11, 2019 near 2.13 NNW Molt. 5% of reports here were 2 inches or larger.
When did it last hail in Stillwater County?
The most recent report in this data is from August 7, 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 Stillwater County had in the last five years?
8 separate days with hail reports since November 3, 2021, adding up to 12 reports. The most recent was August 7, 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.