What clothing sizes was your LO in at what age for the first year? Obviously each baby will vary and clothing brands vary too but with yard sale season soon here I was hoping to stock up on clothes for the next 12 months or so but I'm not sure what size/seasons to buy. My LO is 4weeks and just starting to outgrow some of her newborn clothes (0-3 is still pretty big though). My mom keeps telling me you double their age and that's the size they wear but a 6 month old wearing 12 month clothing doesn't make sense to me..
Re: Clothing sizes for first year?
It's really hard to say, they grow at such different rates. My little guy is 6 weeks old and I had to move him into 3-6 month clothes 2 weeks ago, but he was a large baby and never did fit in newborn clothes. I have a lot of short-sleeved outfits and onesies and will just put a long-sleeved onesie underneath if needed (we live in Minnesota so we typically need more than one layer for most of the year). As for pants, that's not as easy to guess what sizes will be needed. I am lucky and this is boy #4 for me so we have lots of clothes for every size and season.
I would say hit garage sales early in the season to shop for spring/summer clothes, and then again closer to fall when you will have a better idea what size she might be in for fall/winter.
My DD1 was always 3-6 months behind in clothing. She was wearing newborn until she was 3+ months, still wears some 24mo now at 2.5, etc. We had friends whose 6 mo olds were wearing 12mo, so it's certainly not unheard of. My coworker's 1yr old wears the same size as my 2.5 yr old.
The nice thing with girls is you can add leggings and sweaters to summer dresses/tunics so they last longer.