Grand Junction hail storm history
Mesa County·NOAA NCEI Storm Events Database·~75-day publication lag
Grand Junction, located in Mesa County on Colorado's Western Slope, sits in a geographic corridor where afternoon thunderstorms develop downwind of the Rocky Mountains. The city's elevation and position relative to regional moisture patterns create conditions favorable for hail formation during the warm season, though the frequency and intensity of events remain lower than counties along the Front Range.
Check if your roof was damaged by recent hail
Hail in Grand Junction peaks during June, July, and August, with secondary activity in May. The mountain geography of Mesa County delays peak hail season by 4 to 6 weeks compared to the Front Range, and afternoon convective storms dominate during these months. Homeowners should expect the highest risk during mid-to-late summer afternoons.
Annual frequency — last 10 years
When hail hits — monthly pattern
Avg events per month · all years · NOAA data
All recorded hail events
Of 12 recorded events, 1 (8%) reached 1.5" or larger — the threshold for likely functional damage on standard asphalt shingles.
At 908 MST on September 12, a CoCoRaHS observer reported 0.75 inch diameter hail 5 miles NW of Mack,…
Between 1625 and 1650 MST, a severe storm tracked southeast through the Grand Valley from Fruita thr…
COOP Observer reported hail of an estimated 0.88 inches, comparable to a Nickle, in the Orchard Mesa…
A severe thunderstorm moved across the Grand Junction area from downtown to the airport, producing 0…
Nickel size hail was reported 2 miles west of Palisade in Mesa County.
Hail estimated to be the size of quarters accumulated on the road near Skyway on the Grand Mesa. The…
A severe thunderstorm produced large hail estimated to be the size of quarters south-southeast of De…
A severe thunderstorm dropped mostly dime-sized hail as well as some stones estimated to be the size…
Quarter-sized hail fell in Palisade.
Quarter-sized hail was observed at Highline Lake State Park.
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 ↗