Living in Denver, we know just how crazy hail storms can get and how much damage they can bring. Anyone who has lived at a mile high for even a short amount of time likely has had at least a hail scare, if not hail damage. The funny thing is, although Denver does get monstrous hail–there a few places that have had it much worse. Like the places below who have the dubious privilege of the largest hailstones recorded.
LARGEST (DIAMETER) HAILSTONE EVER RECORDED
Vivian, South Dakota 2010
A 20.3 cm (8.0 inch) hailstone was both reported and recorded during an intense hail storm on July 23, 2010in Vivian, South Dakota. A severe supercell struck and caused abnormally large stones to rain down. Confirmed by the National Weather Service for certification in Aberdeen, South Dakota, the hailstone had a circumference of 47.3 cm (18.625 inches) and a weight of 0.88 kg (1.9375 pounds)! It even left a 25 cm crater where it hit the ground!
Note: There are other larger or similar sized hailstones reported but not confirmed in Ponca City, Oklahoma a 20-cm hail on April 17, 1935.
LARGEST (CIRCUMFERENCE) HAILSTONE EVER RECORDED
Aurora, Nebraska 2003
At 47.6cm the largest hailstone ever recorded on June 22, 2003, hit Aurora, Nebraska during a severe storm. The hailstone was 17.8 cm diameter and actually may have been bigger since it hit a roof and broke in half. No weight was officially recorded again since the hailstone hit the roof. Hail in Hamilton County (including Aurora)is known to produced impact pits on the ground around 36 cm across!