Sioux City, IA Hail & Wind Storm History
Severe weather within ~25 miles of Sioux City, Iowa or recorded for its county over the last 12 months — NWS warnings, observed storm reports, and official records, consolidated.
Sioux City, Iowa storm history at a glance (last 12 months)
This free weather history for Sioux City — home to roughly 86,875 residents in Woodbury County — draws on StormAuditor's consolidated public record: 179 wind and hail events within 25 miles of Sioux City or recorded for Woodbury County in the trailing 12 months — 127 wind events and 52 hail events, including a maximum observed wind gust of 83 mph and observed hail up to 2″. Woodbury County as a whole recorded 151 events (102 wind · 49 hail). Events fuse NWS warnings, observed Local Storm Reports, station measurements, and official NCEI records, consolidated into a single event table.
Biggest storm days near Sioux City
- May 17, 2026 — 39 recorded events · 37 wind · 2 hail
- May 15, 2026 — 16 recorded events · 3 wind · 13 hail
- January 21, 2026 — 13 recorded events · 13 wind
- December 10, 2025 — 11 recorded events · 11 wind
- April 23, 2026 — 10 recorded events · 5 wind · 5 hail
Sioux City hail map and wind map
Researching hail in Sioux City or severe wind in Sioux City? Radar-derived hail swaths and peak-gust wind swaths for Iowa — including the Sioux City 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 Woodbury County. County-level activity is on the impact heatmap, and day-by-day history is on the Storm Calendar.
Free Sioux City 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 Sioux City address, and the Address Lookup adds free Sioux City wind history and free Sioux City 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 Sioux City storm data download
The Sioux City dataset on this page — every wind and hail event within about 25 miles of Sioux City or recorded for Woodbury County from the last 12 months, consolidated so the same source record is never counted twice (a storm that triggered several NWS warning products shows each product), 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 while county records can extend beyond it, these counts can legitimately differ from the Woodbury County-only totals above. Statewide files are on the Iowa storm data page.
More Iowa city storm pages: Des Moines hail & wind history · Cedar Rapids hail & wind history · Davenport hail & wind history · Marion hail & wind history · Marshalltown hail & wind history · Coralville hail & wind history · Ankeny hail & wind history · Iowa City hail & wind history · Iowa 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 September 19, 2026. Counts cover severe and sub-severe wind and hail; flood activity and Special Weather Statements are tracked separately on the dashboard.