Dressing baby

My oldest was a January baby and now with having a July baby, I feel a little lost on what is appropriate to put her in like for her first doctors appointment. I know it’ll be cold in the doctors office, but I’ll have her blanket with us of course. Should she be in long sleeves and pants? Footie sleeper? Is short sleeves okay? Send help 😆

We live in the south so it’s easily 95+ here