Gillette hail storm history
Campbell County·NOAA NCEI Storm Events Database·~75-day publication lag
Gillette, Wyoming, located in Campbell County on the high plains of northeastern Wyoming, sits within one of the most active hail corridors in the northern Great Plains. Supercell thunderstorms that develop along the Black Hills uplift frequently track into the Powder River Basin, making this region particularly susceptible to large hail events. The geographic position and seasonal atmospheric conditions create recurring conditions for severe hail damage to residential and commercial structures.
Check if your roof was damaged by recent hail
Hail in Gillette peaks during June and July, when atmospheric instability and wind shear patterns favor supercell thunderstorm development across the high plains. May and August also see elevated hail activity, extending the primary risk window across five months. Wind-driven hail during these storms frequently causes damage to windows, siding, and roofing materials across multiple neighborhoods in a single event.
Annual frequency — last 10 years
When hail hits — monthly pattern
Avg events per month · all years · NOAA data
All recorded hail events
Of 138 recorded events, 42 (30%) reached 1.5" or larger — the threshold for likely functional damage on standard asphalt shingles.
The combination of large hail and gusty winds produced some property damage.
The storm also produced wind gusts to 50 mph.
Hail to quarter size covered the ground.
Large hail broke through a bedroom window.
Wind gusts to 50 mph accompanied the storm.
A couple of hail stones were about quarter size, although most were dime to nickel size.
Wind gusts reached 45 mph.
Wind gusts to 48 mph accompanied the storm.
Wind gusts to 50 mph were also reported.
Winds gusted to around 50 mph.
Wind gusts around 50 mph also broke tree branches.
Quarter sized hail was reported in the Wagon Wheel area of northwest Gillette.
NOAA National Centers for Environmental Information Storm Events Database. Publication lag is approximately 75 days — current-year events may be incomplete.
NOAA Storm Events Database ↗