The Guinness world record for the largest snowflake was a snowflake 15 inches in diameter and 8 inches thick recorded at Fort Keogh, Montana in 1887. – WTF Fun Facts
WTF Fun Fact – Worlds Largest Snowflake

The Guinness world record for the largest snowflake was a snowflake 15 inches in diameter and 8 inches thick recorded at Fort Keogh, Montana in 1887. – WTF Fun Facts