Hail history for Cascade County, Montana
Every NOAA hail report filed in Cascade County since 1955, with preliminary National Weather Service reports to November 3, 2026.
Readout · Cascade County
- Last hail
- Sep 13, 2026
- 1.00 in, quarter size · preliminary
- Hail days, last 5 years
- 12
- since Nov 3, 2021 · 44 reports
- Largest ever
- 3.00 in
- teacup · Jul 7, 2022
256 reports on 135 days since 1955 · #9 of 57 Montana counties
Hail map · Cascade 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 Cascade County
The latest hail report in Cascade County is from September 13, 2026, 1.00 in (quarter size). Since November 3, 2021 there have been 12 separate hail days; the biggest stones in that time were 3.00 in on July 7, 2022.
Over the 20 years 2006–2025, Cascade County logged 134 reports on 51 hail days, about 6.7 reports a year. That is about twice the median Montana county (3.0 a year) and ranks #9 of 57 Montana counties for all-time reports. Cascade County holds 3% of all 8,453 hail reports in Montana.
7% 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 3.00 in (teacup) on July 7, 2022 near 2.92 NNW Sun River.
Reports held about level in 2016–2025 (68) compared with 2006–2015 (66). The busiest year was 2014, with 26 reports on 6 days. Hail here peaks in June (36% of reports); 51% fall between April and June.
Reports a year 2006–2025 average
- Cascade County 6.7
- Median Montana county 3.0
Hail days 2006–2025
- Cascade County 51
- Median Montana county 31
Share 2 in or larger of sized reports
- Cascade County 7%
- Median Montana county 7%
Hail over time
| Year | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Total |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2026 | 1 | 2 | 3 | ||||||||||
| 2025 | 10 | 3 | 13 | ||||||||||
| 2024 | 1 | 1 | |||||||||||
| 2023 | 1 | 3 | 4 | ||||||||||
| 2022 | 3 | 20 | 23 | ||||||||||
| 2021 | 2 | 2 | |||||||||||
| 2020 | 2 | 2 | |||||||||||
| 2019 | 5 | 2 | 1 | 8 | |||||||||
| 2018 | 0 | ||||||||||||
| 2017 | 2 | 4 | 6 |
Hail days since Nov 3, 2021
| Date | Reports | Largest | Storm page |
|---|---|---|---|
| Sep 13, 2026 | 2 | 1.00 in | View |
| Aug 26, 2026 | 1 | 0.40 in | View |
| Jul 31, 2025 | 1 | 1.00 in | — |
| Jul 29, 2025 | 1 | 1.00 in | — |
| Jul 28, 2025 | 1 | 1.00 in | — |
| Jun 15, 2025 | 10 | 1.00 in | — |
| Jun 21, 2024 | 1 | 1.50 in | — |
| Jul 30, 2023 | 2 | 1.25 in | — |
| Jul 29, 2023 | 1 | 1.75 in | — |
| Jun 5, 2023 | 1 | 1.00 in | — |
| Jul 7, 2022 | 20 | 3.00 in | — |
| Jun 18, 2022 | 3 | 1.00 in | — |
Largest hail on record
| Date | Size | Location | Time · source |
|---|---|---|---|
| Jul 7, 2022 | 3.00 inteacup | 2.92 NNW Sun River | 15:32 local · NCEI |
| Jun 6, 1997 | 2.75 inbaseball | 9 NW Monarch | 16:00 local · NCEI |
| Jul 10, 1965 | 2.75 inbaseball | — | 16:45 local · NCEI |
| Jul 7, 2022 | 2.50 intennis ball | 1.97 NW Great Falls | 16:45 local · NCEI |
| Jul 7, 2022 | 2.50 intennis ball | 0.69 N Vaughn | 16:06 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 74 29%
- 1–2 in 164 64%
- 2 in + 18 7%
Most recent reports
| Date | Size | Location | Time · source |
|---|---|---|---|
| Sep 13, 2026 | 1.00 inquarter | 9 W Monarch | 23:45 UTC · NWS prelim. |
| Sep 13, 2026 | 0.88 innickel | 9 W Monarch | 01:46 UTC · NWS prelim. |
| Aug 26, 2026 | 0.40 inpea | 2 NE Cascade | 00:32 UTC · NWS prelim. |
| Jul 31, 2025 | 1.00 inquarter | 1.4 W Great Falls | 20:10 local · NCEI |
| Jul 29, 2025 | 1.00 inquarter | 2.8 NW Campsite | 11:26 local · NCEI |
| Jul 28, 2025 | 1.00 inquarter | 2.8 NW Campsite | 15:20 local · NCEI |
| Jun 15, 2025 | 1.00 inquarter | 0.93 W Great Falls | 15:10 local · NCEI |
| Jun 15, 2025 | 1.00 inquarter | 2.33 W Portage | 15:10 local · NCEI |
| Jun 15, 2025 | 1.00 inquarter | 0.83 NE Great Falls | 15:06 local · NCEI |
| Jun 15, 2025 | 1.00 inquarter | 1.16 NW Great Falls | 15:05 local · NCEI |
| Jun 15, 2025 | 1.00 inquarter | 1.4 W Great Falls | 15:00 local · NCEI |
| Jun 15, 2025 | 1.00 inquarter | 0.83 NE Great Falls | 15:00 local · NCEI |
Cities and towns in Cascade County
| Place | Reports | Largest |
|---|---|---|
| Great Falls | 65 | 2.50 in |
| Vaughn | 14 | 2.50 in |
| Malmstrom AFB | 13 | 2.75 in |
| Monarch | 12 | 2.00 in |
| Sun River | 12 | 3.00 in |
| Simms | 10 | 1.00 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 |
|---|---|---|---|
| Cascade | 9 | 8 | Aug 26, 2026 |
| Sun Prairie | 7 | 7 | Jul 7, 2022 |
| Belt | 6 | 6 | Jul 30, 2023 |
| Fort Shaw | 6 | 6 | Jun 18, 2022 |
| Neihart | 6 | 6 | Sep 7, 2013 |
| Pleasant Valley Colony | 5 | 4 | Sep 8, 2013 |
| Stockett | 5 | 5 | Jun 10, 2016 |
| Ulm | 5 | 5 | May 28, 2014 |
| Hardy | 2 | 1 | May 10, 2007 |
| Tracy | 2 | 2 | May 10, 2007 |
| Big Stone Colony | 1 | 1 | Jun 10, 2003 |
| Fair Haven Colony | 1 | 1 | Jun 19, 1960 |
| Riceville | 1 | 1 | Jun 6, 1997 |
| Sand Coulee | 1 | 1 | May 10, 2007 |
Questions about hail in Cascade County
How often does it hail in Cascade County, Montana?
256 hail reports have been logged in Cascade County since 1955. Over the 20 years 2006–2025 that averages 6.7 reports a year. That ranks #9 of 57 Montana counties by number of reports.
When is hail season in Cascade County?
Most reports come in June, July, August. June alone accounts for 36% of all reports.
What is the largest hail recorded in Cascade County?
3.00 in (teacup size) on July 7, 2022 near 2.92 NNW Sun River. 7% of reports here were 2 inches or larger.
When did it last hail in Cascade County?
The most recent report in this data is from September 13, 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 Cascade County had in the last five years?
12 separate days with hail reports since November 3, 2021, adding up to 44 reports. The most recent was September 13, 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.