Ramírez was booked in the first game of the Clausura 2013 season against Cruz Azul after a protest to the referee, the match ended in a 3–3 draw. On February 3, 2013, Ramírez played his 150th match for Morelia but the feat was overshadowed by a 3–1 loss to Puebla. Ramírez first assist came when he assisted Jefferson Montero in the first goal in a 3–2 win against Pachuca. His second assist of the season came when he assisted Carlos Ochoa in the third goal of the 4–0 victory over Atlante. His third assist of the season came against Toluca when he headed the ball to Jefferson Montero who put Morelia ahead 1–0, Morelia ended up winning 2–1. When Morelia sacked Rubén Omar Romano and replaced him with Carlos Bustos, Morelia went undefeated in the last 10 matches of the season and ended in fourth place with 30 points. Morelia faced Cruz Azul in the quarterfinals of the "liguilla", Ramírez played the full match of the first leg at Estadio Azul as Cruz Azul won 4–2 and ended Morelia's 10 match unbeaten streak. Ramírez was booked in the 52 minute of the second leg which Morelia won 1–0 after a goal by Rodrigo Salinas but it was not enough to advance as the aggregate score was 4–3.