Some interesting information has surfaced over the years relating to hail in our region. June has the highest frequency statewide, averaging over 130 reported severe hailstorms a year. The vast majority of hail occurs May through August. Fort Collins has its most frequent hailstorms in May, but its largest hail comes in July and August.
Hail is primarily an afternoon or evening phenomenon in Colorado.
Hailstorms rarely last more than 15 minutes at any given location. The median duration is 6 minutes. The storm itself may drop hail continuously for several hours along its path. This is the size at which hail becomes capable of more extensive property damage. The largest documented hailstone fell in Kansas.