LO went to the doctor today and is 22 lb 8 oz and 31 inches. I want to order some clothes from Carter's for the fall but I don't know what size. She currently fits into their 12 month for weight and 18 month for height (she's wearing 18 month right now).

Do I go to 24 month though? It's relatively warm here in NC so fall may start in September but it may not start until October/November.