The average weight for a 2-year-old boy is around 30 pounds. The average weight for a girl who is 2 years old is slightly lower at 29 pounds.
Boys who are 2 years of age are between 35 and 37 inches tall, on average. Girls in this age bracket are on average between 34 and 36 inches tall. During the second year of life, children grow an average of 2 to 3 inches. Children should be active daily to facilitate healthy growth. Milestones for 2-year-olds include developing second molar teeth. The teeth usually come in when the child is between 20 and 32 months.