Fort Collins hail storm history
Larimer County·NOAA NCEI Storm Events Database·~75-day publication lag
Fort Collins, located in Larimer County on Colorado's Front Range, has experienced 6 hail events of 1 inch or larger over the past 10 years, with the largest recorded hailstone measuring 2.5 inches in diameter. The city averages 0.6 hail events per year, making it a moderate-risk area for hail damage to roofs, vehicles, and property.
Hail risk in Fort Collins peaks between May and July, when afternoon convective storms tracking northeast from the Rocky Mountains create conditions favorable for large hail development. Most significant hail events occur between 2 p.m. and 7 p.m. Mountain Time, with secondary risk extending into April and August. Of the 6 documented events in the past decade, 3 produced hailstones of 1.5 inches or larger.
Annual frequency — last 10 years
When hail hits — monthly pattern
Avg events per month · all years · NOAA data
All recorded hail events
Of 115 recorded events, 39 (34%) reached 1.5" or larger — the threshold for likely functional damage on standard asphalt shingles.
Report from mping.
Reported via mPing.
A CoCoRaHS observer reported half inch to 1 inch diameter hail which lasted for 5 minutes.
Hail caused extensive leaf damage to an apple tree and garden.
Hail damaged a window.
Hail covered to road, up to 3 inches in depth.
NOAA records document 7 hail events for Larimer County over the available historical period, though Fort Collins itself has experienced 6 events of 1 inch or larger in the past 10 years. Local reporting density may affect the completeness of smaller hail events, particularly those causing minor damage.
NOAA Storm Events Database source