Like music explicit about winter and how it makes you feel. Maybe think more yuletide than Christmas I suppose. Heavy on the pine wood forest and cold winter nights and light on the Jesus and love
The vibes don't have to be happy either, some songs by woods of ypres work as well
piano winterlude
Classic mom music. Instrumental versions of traditional tunes often with that “Wyndham hill” vibe.
E: windham hill winter sample albums are gonna be good, earlier ones have that heady sound, later ones are more reined in.
I found a YouTube link in your comment. Here are links to the same video on alternative frontends that protect your privacy: