Duncan, OK Hail & Wind Storm History
Severe weather within ~25 miles of Duncan, Oklahoma over the last 12 months — NWS warnings, observed storm reports, and official records, deduplicated.
Duncan, Oklahoma storm history at a glance (last 12 months)
This free weather history for Duncan — home to roughly 23,174 residents in Stephens County — draws on StormAuditor's deduplicated public record: 32 wind and hail events within 25 miles of Duncan in the trailing 12 months — 8 wind events and 24 hail events, including a maximum observed wind gust of 71 mph. Stephens County as a whole recorded 132 events (60 wind · 72 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 Duncan
- April 25, 2026 — 7 recorded events · 7 hail
- April 26, 2026 — 5 recorded events · 5 hail
- March 10, 2026 — 3 recorded events · 3 hail
- November 19, 2025 — 3 recorded events · 1 wind · 2 hail
- June 11, 2026 — 3 recorded events · 3 wind
Duncan hail map and wind map
Researching hail in Duncan or severe wind in Duncan? Radar-derived hail swaths and peak-gust wind swaths for Oklahoma — including the Duncan 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 Stephens County. County-level activity is on the impact heatmap, and day-by-day history is on the Storm Calendar.
Free Duncan 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 Duncan address, and the Address Lookup adds free Duncan wind history and free Duncan 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 Duncan storm data download
The Duncan 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 Stephens County totals above. Statewide files are on the Oklahoma storm data page.
More Oklahoma city storm pages: Oklahoma City hail & wind history · Tulsa hail & wind history · Norman hail & wind history · Weatherford hail & wind history · Woodward hail & wind history · Elk City hail & wind history · Broken Arrow hail & wind history · Edmond hail & wind history · Oklahoma 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.