The largest snowflake ever observed in the world supposedly appeared 125 years ago in Fort Keogh, Montana.According to the Guinness Book of World Records, in 1887 the largest snowflake ever observed fell in Fort Keogh, Montana and was 15 inches wide and 8 inches thick! Not surprisingly there aren’t any photographs of this giant snowflake, so basically its just taking the word of the rancher who claims he found this monster.
This record seems a bit dubious, as the National Snow & Ice Data Center notes in its FAQ on how big snowflakes can get:
“Snowflakes are agglomerates of many snow crystals. Most snowflakes are less than one-half inch across. Under certain conditions, usually requiring near-freezing temperatures, light winds, and unstable, convective atmospheric conditions, much larger and irregular flakes close to two inches across in the longest dimension can form. No routine measure of snowflake dimensions are taken, so the exact answer is not known.”
There had been even a Google Doodle which prominently features a giant snowflake and leads searchers to discover more about this Guinness World record.The Doodle features a cow grazing in snow-covered ground. Over a few seconds, the giant snowflake descends, sending birds flying to avoid being crushed, and slightly drawing the interest of the cow once the flake lands, shaking the animated logo. The snowflake become the second “o” in Google’s logo, joining a leafless tree as the “G” and a tower which substitutes for the “l”