The average weight of an thirteen year old girl is 101lbs. but that is based on the average height of an thirteen year old girl. If you are taller than an average thirteen year old girl you will weigh more.
average height for a one year old girl is 32 inches average weight for a one year old girl is 24.75 lb average height for a one year old boy is 33.75 inches average weight for a one year old boy is 27 lb
Actually, there is no 'average' weight and height for a child - if you will supply to me the child's age in months and the height, I will be able to relay the approximate anticipated weight for the child. RBB, MD
There is no 'average' weight for a 7-year-old girl because weight is related to height and body composition. For in-depth information about weight in relation to height, and to see the distribution of weights and heights of children at various ages.