The largest individual snow crystal measured was 10 mm (0.39 in) from tip to tip, as documented by Professor Kenneth Libbrecht (USA) in Cochrane, Ontario, Canada, on 30 December 2003. Records change on a daily basis and are not immediately published online.

2019年3月13日 · In 1887, a 15-inch wide snowflake fell on the Fort Keogh Army Post in Montana that is still considered the largest ever.

2023年11月18日 · Fort Keogh, Montana, United States--A giant snowflake discovered by Matt Coleman, a ranch owner in Fort Keogh, Montana, in 1887, measured 15 inches (38.1 cm) wide and 8 inches (20.3 cm), setting the world record for being the World Largest Snowflake, according to the WORLD RECORD ACADEMY.

2025年1月3日 · Well, according to the Guinness World Record keepers, the "largest snowflake" ever recorded was a whopping 15 inches in diameter. It was spotted near Missoula, Montana in 1887. But Kenneth Libbrecht, a physicist at Caltech, has long been skeptical of that record.

2025年1月3日 · Well, according to the Guinness World Record keepers, the "largest snowflake" ever recorded was a whopping 15 inches in diameter. It was spotted near Missoula, Montana in 1887. But Kenneth...

2023年11月30日 · After many years, and no photographic evidence, the Guinness Book of World Records declared it as the World’s Largest Snowflake, measuring 15 inches (38 centimeters) wide and 8 inches (20 centimeters) thick.

2023年12月25日 · This 10.0 mm (0.4 inches) monster snowflake holds the Guinness record for the largest snow crystal. A microscope was used to photograph it in four quadrants, which were later digitally...

2024年2月3日 · According to Guinness World Records, the biggest snowflakes on record were 1 ft 3 in (38 cm) wide and 8 in (20 cm) thick, yet the largest snow crystals ever photographed were 10 mm (0.39 in) from tip to tip.

2023年11月27日 · With a width of 15 inches (38 centimeters) and a thickness of nearly 8 inches (20 cm), these colossal flakes currently hold the record for being the largest snowflakes ever recorded, according...

Snowflakes are delicate, fleeting wonders of nature, but did you know that the largest snowflake ever recorded was reportedly 15 inches wide? This extraordinary snowflake fell during a snowstorm in Fort Keogh, Montana, in January 1887, according to historical accounts.