Looks as though Boston, where records go back to 1871-1872, has two worse pork periods....1948-1949 through 1954-1955 seasons (7 consecutive below avg) and the top porker award goes to the 1907-1908 through 1914-1915 seasons (8 consecutive below average). Rumor has it that weenies were hanging themselves by thy knickers.
1910-1911 just made it as below, at 40.6", so it nearly ended at three consecutive.