Casper, WY Hail & Wind Storm History
Severe weather within ~25 miles of Casper, Wyoming or recorded for its county over the last 12 months — NWS warnings, observed storm reports, and official records, consolidated.
Casper, Wyoming storm history at a glance (last 12 months)
This free weather history for Casper — home to roughly 58,823 residents in Natrona County — draws on StormAuditor's consolidated public record: 297 wind and hail events within 25 miles of Casper or recorded for Natrona County in the trailing 12 months — 280 wind events and 17 hail events, including a maximum observed wind gust of 91 mph. Natrona County as a whole recorded 277 events (260 wind · 17 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 Casper
- December 17, 2025 — 23 recorded events · 23 wind
- March 12, 2026 — 23 recorded events · 23 wind
- June 25, 2026 — 20 recorded events · 13 wind · 7 hail
- June 20, 2026 — 18 recorded events · 14 wind · 4 hail
- October 19, 2025 — 16 recorded events · 16 wind
Casper hail map and wind map
Researching hail in Casper or severe wind in Casper? Radar-derived hail swaths and peak-gust wind swaths for Wyoming — including the Casper 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 Natrona County. County-level activity is on the impact heatmap, and day-by-day history is on the Storm Calendar.
Free Casper 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 Casper address, and the Address Lookup adds free Casper wind history and free Casper 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 Casper storm data download
The Casper dataset on this page — every wind and hail event within about 25 miles of Casper or recorded for Natrona 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 Natrona County-only totals above. Statewide files are on the Wyoming storm data page.
More Wyoming city storm pages: Cheyenne hail & wind history · Gillette hail & wind history · Laramie hail & wind history · Sheridan hail & wind history · Wyoming 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.