By the numbers

At 18 months (Mr. Andrew):

your child is 27.5 pounds, and that is
at the 70th percentile for weight.

your child is 33.5 inches, and that is
at the 79th percentile for height.

your child has a head circumference of 19.5 inches, and that is
at the 89th percentile for head circumference.

At 4 months (Miss Clara):

your child is 14.25 pounds, and that is
at the 52nd percentile for weight.

your child is 24.5 inches, and that is
at the 45th percentile for height.

your child has a head circumference of 16.5 inches, and that is
at the 66th percentile for head circumference.