At 9 Months: Weight: 20 pounds, 1/2 ounce (50th percentile) Height: 30 inches (90th percentile) Yes, I have long, skinny babies. (His big sister was the same way…although she has never been anywhere near the 50th percentile in weight!) Titus hit what had to be his 9-month growth spurt…and “celebrated” turning 9 months by reverting to his newborn eating patterns…every hour, on the …