New Haven, Connecticut - Sunday, March 10, 2019: The St. Patrick?•s Day Parade on a rainy and chilly Sunday afternoon in New Haven. According to the St. Patrick's Day Parade of New Haven website, the parade tradition was born in New Haven on March 17, 1842, when about 90 members of the Hibernian Provident Society, a mutual aid organization formed the previous year, marched through the city streets behind a banner made especially for the occasion.