There was this film on Swiss TV in the early 2000s. It looked like a US production. I have been trying to find it ever since.
The main character was a girl who came back from the dead in the Winter season to help out her family (8-14 years old, hair to her shoulders, red or brown as I remember). I think she had some magic powers of some sort. It was definitely a drama as I remember and it is quite sad and heart-warming when she leaves in the end. I think there were other kids in the story too.
I was probably around 10 years old at the time and the movie had quite an impression on me. I would love to see it again.