St. Urho's Day is celebrated on March 16 each year in Thunder Bay, as well as in many Finnish-Canadian and Finnish-American Communities. These records relate to both the wider holiday and to its celebration in Thunder Bay.
St. Urho is a [fictional] Finnish saint, renowned for driving the grasshoppers (or, in early legends, frogs) out of the Finnish vineyards. The story of St. Urho originated in Minnesota in the 1950s, and it has over time become a popular aspect of Finnish-American and Finnish-Canadian culture. People wear purple and green to participate in parades, celebrations, and performances.