Greeley hail storm history
Weld County·NOAA NCEI Storm Events Database·~75-day publication lag
Greeley, located in Weld County on Colorado's Front Range, experienced 15 hail events of 1 inch or larger over the past 10 years, with the largest recorded hailstone measuring 1.75 inches in diameter. The city averages 1.5 significant hail events per year. Greeley's position along the Front Range makes it susceptible to afternoon convective storms that track northeast from the Rocky Mountains, creating a consistent hail risk during late spring and early summer.
Hail risk in Greeley peaks during May, June, and July, with secondary activity in April and August. Most significant hail events occur between 2 p.m. and 7 p.m. Mountain Time, when afternoon heating destabilizes air masses over the Front Range and drives storm development northeastward into Weld County. Of the 15 documented events in the 10-year record, 4 produced hail 1.5 inches or larger—the threshold for typical roof damage to standard composition shingles.
Annual frequency — last 10 years
When hail hits — monthly pattern
Avg events per month · all years · NOAA data
All recorded hail events
Of 97 recorded events, 42 (43%) reached 1.5" or larger — the threshold for likely functional damage on standard asphalt shingles.
Report received via Spotter Network.
Report from mping.
Report from mping.
Large hail dented cars, damaged shingles and broke windows.
Large hail shattered car windows.
Hail event records for Greeley rely on National Weather Service reports and storm spotter networks. The 15-event count represents events with documented hail 1 inch or larger; smaller events and storms affecting only portions of the city may not appear in county-level records. Weld County as a whole has 18 documented events, indicating that not all county-wide hail activity impacts Greeley specifically.
NOAA Storm Events Database source