Question: what is the average height of a 13 month old girl?
Answer: 13-Month-Old Weight & Height How much should a 13-month-old weigh and measure? According to the World Health Organization, the average weight of a 13 month old is 20.2 pounds for girls and 21.8 pounds for boys. Average height is 29.6 inches for girls and 30.3 inches for boys.