can you already wear shorts? or you still have to go out in full winter attire

Neither. I wear a pair of jeans, a t-shirt, a cotton pullover and a jacket. I may or may not wear a cap.

It is possible to go out wearing shorts when the ambient temperature is 15 C or so but it is comfortable only when under direct sunlight on a sunny day. Haven't seen anyone in shorts in town yet. The warmest day so far has been last Friday when it was 19 C here in Lahti at about 5 pm. The ground is still near frozen and the waters are ice cold. The temperature maximum of the year will probably be reached some time in July.