Buffalo New York Saint Patrick's Day Parade: March 18, 2012 Delaware Avenue @ 2 PM The 2012 Parade is dedicated to: the Memory of Catherine M. O'Brien The 2012 Parade Mass: Mass will be celebrated by Bishop Edward Kmiec at Saint Joseph’s Cathedral on Sunday, March 18th at 10:30AM before the line up for the Saint Patrick’s Day Parade. The Parade will start at 2PM at Niagara Square and proceed north on Delaware Avenue to North Street. Bishop Kmiec will march with the United Irish American Association, which has conducted this memorable Buffalo tradition since 1940.