Hmmmm...thank you guys. I'm really hoping he hits a growth spurt within a year b/c I would like to plan a trip for his winter break next year. He would really enjoy it. He has been on medication a couple more times than I would like (prednisone) for his asthma and the doctor told me it could stunt his growth

But I have to ask her about his growth curve because like you guys mentioned thats the best predictor and I'm not really sure how to calculate it myself..
My nephew who is 3 months older than my son is 40 inches and rode Soarin already!