Great Falls, MT Hail & Wind Storm History
Severe weather within ~25 miles of Great Falls, Montana over the last 12 months — NWS warnings, observed storm reports, and official records, deduplicated.
Great Falls, Montana storm history at a glance (last 12 months)
This free weather history for Great Falls — home to roughly 60,013 residents in Cascade County — draws on StormAuditor's deduplicated public record: 230 wind and hail events within 25 miles of Great Falls in the trailing 12 months — 230 wind events and 0 hail events, including a maximum observed wind gust of 80 mph. Cascade County as a whole recorded 286 events (266 wind · 20 hail). Events fuse NWS warnings, observed Local Storm Reports, station measurements, and official NCEI records, deduplicated so one storm is counted once.
Biggest storm days near Great Falls
- March 12, 2026 — 29 recorded events · 29 wind
- March 8, 2026 — 28 recorded events · 28 wind
- December 17, 2025 — 23 recorded events · 23 wind
- May 13, 2026 — 10 recorded events · 10 wind
- February 26, 2026 — 10 recorded events · 10 wind
Great Falls hail map and wind map
Researching hail in Great Falls or severe wind in Great Falls? Radar-derived hail swaths and peak-gust wind swaths for Montana — including the Great Falls metro — are on the Hail Explorer and Wind Explorer: pick any storm date and see how estimated hail size and wind gust bands tracked through Cascade County. County-level activity is on the impact heatmap, and day-by-day history is on the Storm Calendar.
Free Great Falls weather report by address
Area maps show where storms tracked; an insurance claim or roof inspection needs what happened at the property. Start with a free weather report check: the Free Report Snapshot answers YES/NO instantly on estimated damaging wind (45+ mph) and damage-capable hail (0.75 in. or larger) at any Great Falls address, and the Address Lookup adds free Great Falls wind history and free Great Falls hail history context — NWS warnings, storm reports, and NOAA observations — at no charge. When you need the full document, a complete Weather Report is $2.99 and covers every qualifying storm date at one address. All values are estimates from public NOAA data under our published methodology — research documentation, not certified weather records (see Limitations).
Free Great Falls storm data download
The Great Falls dataset on this page — every deduplicated wind and hail event within about 25 miles from the last 12 months, with dates, counties, event types, measured gusts, and hail sizes — downloads free, reusable with attribution under the data license: download CSV · download JSON. Because the radius can cross county and state lines, these counts can legitimately differ from the Cascade County totals above. Statewide files are on the Montana storm data page.
More Montana city storm pages: Billings hail & wind history · Missoula hail & wind history · Montana statewide storm data
About this page: built by Storm Auditor LLC from public NOAA/NWS records — deduplicated warnings, storm reports, station measurements, and official records on a rolling 12-month window, under the published methodology. See the StormAuditor Editorial Team for how content is produced.
Data last refreshed August 23, 2026. Counts cover severe and sub-severe wind and hail; flood activity and Special Weather Statements are tracked separately on the dashboard.