What are the normal indicators for a ten month old baby? Ten months may or may not grow teeth, if they grow teeth they may grow four, they may grow six, or they may just start, these are all normal. At the age of one, the height can reach 75, but at ten months, the baby may only be 70-72 centimeters tall. Weight between nine and ten kilograms, these are normal. But ten months of the baby, he has a very obvious development, that is, he can support the stand, parents slightly support when you can stand or hold something to stand, this is the development of this age has the more obvious characteristics.