Are these mums healthy?

I honestly have no idea what I'm doing when it comes to flowers so I'm not sure if my mums are healthy or not. I buy a couple every year but I don't remember some of the stems turning brown like this in the past. We've had a ton of rain and not much sun so maybe that's what's causing this? I thought about fertilizing but I don't want to add water if overwatering is part of the issue right now.

https://preview.redd.it/9kf2loorcnqb1.jpg?width=3024&format=pjpg&auto=webp&s=2538e6e77b4095f883269d4e9bf669e18daf8bae

https://preview.redd.it/w6j6mtorcnqb1.jpg?width=3024&format=pjpg&auto=webp&s=0297c1ef43afebf8c4001fba52f8df629d739a83