Data current as of 2026-10-16 · Sourced from NOAA Storm Events
Over the past five years, the National Oceanic and Atmospheric Administration has recorded 31 hail storms within 25 miles of Gillette, WY. Of those, 28 produced hail at least quarter-size — the threshold most insurance carriers consider potentially damaging to asphalt shingles. The largest reported hail in this window was baseball-sized or larger, which can fracture shingle mat and dent metal flashing on contact. 2026 was the most active year on record locally, with 13 documented hail events.
Check Hail History for a Specific Address in Gillette| Severity | Count | What it means for roofs |
|---|---|---|
| Catastrophic | 1 event | Baseball+ size, structural roof damage likely |
| Destructive | 3 events | Egg-size, expect mat fractures and gutter damage |
| Severe | 5 events | Ping pong-size, granule loss and bruising common |
| Significant | 19 events | Quarter-size, the standard insurance damage threshold |
| Moderate | 3 events | Marble-size, possible cosmetic damage |
| Year | Reported Hail Events Within 25 mi |
|---|---|
| 2026 | 13 events |
| 2024 | 1 event |
| 2023 | 13 events |
| 2022 | 4 events |
2026 was the busiest hail year on record locally for Gillette, with 13 documented events inside the 25-mile radius. Storm activity in Gillette typically peaks in spring and early summer, when the jet stream pushes Gulf moisture into the area and supercell thunderstorms become more frequent.
| Date | Location | Severity | Size | NOAA Comments |
|---|---|---|---|---|
| 2026-06-23 | 6 N Dwtn Gillette, WY | Significant | 1.00" | — |
| 2026-06-23 | 10 N Dwtn Gillette, WY | Significant | 1.25" | At Rawhide Mine. Hail briefly covered the ground. Time estimated based on radar. |
| 2026-06-23 | 4 ESE Rozet, WY | Moderate | 0.88" | Hail covered the ground. Time estimated based on radar. |
| 2026-06-23 | 5 ENE Dwtn Gillette, WY | Significant | 1.00" | No damage or significant wind reported with the hail. Time estimated based on radar. |
| 2026-06-23 | 2 W Rozet, WY | Significant | 1.00" | Photo of hail of at least quarter size received via social media. Time estimated based on radar. |
| 2026-06-23 | 7 E Dwtn Gillette, WY | Destructive | 2.00" | Arrived at location around 735 PM MDT to find golf ball sized hail up to two inch hail still laying on the ground. Time of hail estimated by radar. |
| 2026-06-23 | 4 W Rozet, WY | Significant | 1.25" | Video via social media. Time estimated. |
| 2026-06-22 | (GCC)GILLETTE ARPT, WY | Significant | 1.00" | Report sent to office via the emergency manager. |
| 2026-06-22 | ROZET, WY | Significant | 1.25" | Video via social media. Time estimated based on radar. |
| 2026-06-22 | GILLETTE, WY | Destructive | 2.00" | Arrived at location around 735 PM MDT to find golf ball sized hail up to two inch hail still laying on the ground. Time of hail estimated by radar. |
| 2026-06-22 | GILLETTE, WY | Significant | 1.00" | No damage or significant wind reported with the hail. Time estimated based on radar. |
| 2026-06-22 | (GCC)GILLETTE ARPT, WY | Significant | 1.25" | At Rawhide Mine. Hail briefly covered the ground. Time estimated based on radar. |
| 2026-06-22 | ROZET, WY | Significant | 1.00" | Photo of hail of at least quarter size received via social media. Time estimated based on radar. |
| 2024-05-29 | ROZET, WY | Significant | 1.25" | — |
| 2023-07-31 | WESTON, WY | Severe | 1.50" | The combination of large hail and gusty winds produced some property damage. |
| 2023-07-31 | WESTON, WY | Severe | 1.50" | — |
| 2023-07-17 | GILLETTE, WY | Severe | 1.75" | Wind driven hail broke windows and damaged siding. |
| 2023-07-17 | GILLETTE, WY | Severe | 1.50" | — |
| 2023-07-17 | GILLETTE, WY | Moderate | 0.75" | — |
| 2023-07-17 | ROZET, WY | Destructive | 2.00" | Wind driven hail broke a window. |
NOAA has recorded 108 high-wind events within 25 miles of Gillette, WY in the past five years. Of those, 108 reached severe-thunderstorm thresholds (58+ mph). The highest measured gust was 76 mph.
| Severity | Count |
|---|---|
| Severe | 25 events |
| Significant | 83 events |
| Date | Location | Gust (mph) | Severity | NOAA Comments |
|---|---|---|---|---|
| 2026-10-15 | 1 NE Echeta, WY | 55 | Significant | — |
| 2026-10-15 | 1 NE Echeta, WY | 54 | Significant | — |
| 2026-09-28 | 5 NNW Dwtn Gillette, WY | 55 | Significant | — |
| 2026-09-19 | 10 SW Dwtn Gillette, WY | 51 | Significant | — |
| 2026-09-19 | 5 NNW Dwtn Gillette, WY | 51 | Significant | — |
| 2026-09-14 | 5 NNW Dwtn Gillette, WY | 56 | Significant | — |
| 2026-09-14 | 1 NE Echeta, WY | 51 | Significant | — |
| 2026-09-14 | 1 NE Echeta, WY | 53 | Significant | — |
| 2026-08-30 | 1 NE Echeta, WY | 53 | Significant | — |
| 2026-08-30 | 5 NNW Dwtn Gillette, WY | 52 | Significant | — |
| 2026-08-30 | 7 WSW Dwtn Gillette, WY | 51 | Significant | — |
| 2026-08-30 | 1 W Rozet, WY | 52 | Significant | — |
| 2026-08-12 | 13 N Reno Junction, WY | 74 | Severe | Measured on a personal weather station |
| 2026-08-03 | 1 NE Echeta, WY | 50 | Significant | — |
| 2026-07-29 | 14 NNW Dwtn Gillette, WY | 52 | Significant | Along Highway 14. |
| 2026-07-29 | 5 NNW Dwtn Gillette, WY | 52 | Significant | — |
| 2026-07-29 | 8 WSW Dwtn Gillette, WY | 61 | Significant | Measured on a personal weather station along I-90. |
| 2026-07-29 | 4 SSW Dwtn Gillette, WY | 53 | Significant | Measured on a personal weather station. |
| 2026-07-29 | 8 WSW Dwtn Gillette, WY | 53 | Significant | Measured on a personal weather station along I-90. |
| 2026-07-29 | 5 SW Dwtn Gillette, WY | 57 | Significant | Measured on a personal weather station. |
The most recent quarter-size-or-larger hail storm recorded by NOAA within 25 miles of Gillette was on June 23, 2026. HailCheck refreshes from the NOAA Storm Events database daily, so newer events appear here as they are reported.
Gillette averages roughly 6 reported hail events per year within a 25-mile radius. Significant storms (quarter-size or larger) account for 28 of the 31 events recorded over the last five years.
The largest documented hail near Gillette in the last five years was baseball-sized or larger. Most Gillette-area hail falls in the marble-to-quarter range, with destructive storms (egg-size or larger) appearing roughly once every few years.
Most homeowners insurance policies in WY cover hail damage to roofs, siding, and gutters under the dwelling and other-structures coverage. Coverage typically requires the damage to be tied to a verifiable storm date — which is where the NOAA hail history above (and a HAAG-style test square validation) becomes important for the claim file.
Use the HailCheck address search to enter any street address in or near Gillette. HailCheck returns every NOAA hail event within a configurable radius, along with severity bands, dates, and storm narratives for Pro members.
If your property in or near Gillette took on hail during one of the storms above, the standard process for documenting damage is a 10×10 foot test square inspection. A HAAG-trained reviewer counts impact indicators — granule displacement, mat fractures, and bruising — within the marked square and produces a PASS or FAIL document for the claim file.
HailCheck offers a $99 photo-based HAAG-style test square validation. You submit photos from the field, our reviewer evaluates the impact indicators and cross-references the NOAA storm dates listed above, and a written PASS/FAIL determination is returned within one business day. We do not send anyone to the roof — the validation is built around the photos you submit.
Learn About $99 HAAG-Style ValidationGillette sits east of the traditional hail alley, where hail events are less frequent than the central plains but tend to be associated with strong squall lines and tropical systems. Local roof systems are less commonly hardened for hail, which can mean even moderate impacts produce claim-worthy damage.