Well, living in Christmas would leave one thinking that it's always cold... and it is! It's just dddegrees of cold. Now for living somewhere that does not get cold and Chrismassy, that is when you have to get very creative in bringing about that holiday feeling. Try looking for some native "holiday" plants for the area you are in, or just decorate some of your own with festive colours. The music of the season always helps me getinto the mood.
Also, find out what the locals do for the holidays, life is all about new experiences, find out how people in warmer climates enjoy the holiday.