Not quite 24 and a half months. She lasted longer rear-facing* than the boys simply because her convertible seat was a bigger model. And she really could have stayed rear-facing longer–she had several inches in height to go) and I would have been happy with that, but Little Man M had only a tiny place to squish his feet between his seat and the back of The Girly’s. (Because her seat had to be reclined a good bit for the carseat to be at the correct angle.) He was becoming unhappy about riding in the van. And that wasn’t going to work. Now Little Man is a content passenger and The Girly thinks she is it looking out the front window. I’m sure she misses watching her brothers, but for now she’s good with the new way. She fell asleep on the way home from errands yesterday. With Clif Bar on her face. Adorable.
* I realize more people are aware of extended-rear-facing in 2011 than back in 2004 when B-Man was still rear-facing at 1 year and 20 pounds. But here is a bit more about the why. You will have to scroll down to the heading, Why should my child rear-face past 1 year and 20 lbs?