Short Answer 
Children’s growth is influenced by genetics and environment, typically growing about 3 inches annually during early childhood. Around age 9, girls enter a growth spurt phase, with significant height increases expected as they approach 9.5 years old, leading to further growth until peak velocity around 11.5 years.
Step 1: Understand Growth Patterns
Children’s growth is influenced by various factors, including genetics and the environment. Typically, children grow about 3 inches each year during early childhood. For girls, by the age of 6, the height generally ranges between 44 to 47 inches, establishing a basis for expected height as they approach the age of 9.
Step 2: Recognize the Growth Spurt Phase
At around 9 years old, girls are nearing a phase known as the pubertal growth spurt. This means they may experience a significant increase in height as they approach 9.5 years old. This onset of accelerated growth is crucial for their overall development and can vary from child to child based on individual health and genetics.
Step 3: Monitor Height Expectations
While there isn’t a specific average height for a 9-year-old girl, most will likely grow taller in the following years, especially leading up to their peak height velocity around 11.5 years old. Parents can keep an eye on their child’s growth using CDC growth charts for a clearer understanding of where their child’s height falls within standard ranges.