Health Topics

Growth: 1 to 3 Months

While all babies may grow at a different rate, the following indicates the average for boys and girls 1 to 3 months of age.

  • Weight: average gain of about 1½ to 2 pounds each month
  • Height: average growth of over 1 inch each month
  • Head size: average growth of about ½ inch each month
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Your Baby's Abilities

Your Baby's Communication

Your Baby's Understanding and Awareness

Development and Emotional Security

Last Updated: 07/2012