Health Topics

Growth: 7 to 9 Months

While all babies may grow at a different rate, the following indicates the average for boys and girls 7 to 9 months of age.

  • Weight: average gain of 1 pound each month; boys usually weigh about ½ pound more than girls
  • Height: average growth of about ½ inch each month
  • Head size: average growth of about ¼ inch each month
Show All

Your Baby's Abilities

Your Baby's Communication

Development and Emotional Security

Last Updated: 07/2012