The New York Yankees score 13 runs in the 2nd inning of a 19 – 8 victory over Tampa Bay. The last time New York scored 13 runs in an inning was on June 21, 1945, in the 5th inning of a 14 – 4 victory against Boston.

On April 18, 2005 — The New York Yankees score 13 runs in the 2nd inning of a 19 – 8 victory over Tampa Bay. The last time New York scored 13 runs in an inning was on June 21, 1945, in the 5th inning of a 14 – 4 victory against Boston.

Source
Baseball Reference April 18