What is the normal weight for a three-and-a-half-month-old infant?

Generally, the average weight of a 3.5-month-old boy may range between 5.5 and 7.5 kilograms, while that of a girl may range between 5 and 7 kilograms. These values are for reference only; actual weight should be assessed according to the child's growth curve, nutritional status, and overall health. Parents are advised to regularly record their child's weight changes and consult with a doctor to ensure healthy development.