Most of the colder days are usually sunny. During most of December and early January the days are short. Spring can be quite unpredictable, although most of the winter snow has usually melted by the beginning of April. All buildings have central heating. It is not necessary to wear heavy clothing indoors, even during the winter.
Most people only wear heavy overcoats and shoes when going outdoors.
You should prepare for winter by purchasing in September or October a good winter jacket, gloves, something to cover your head, and warm boots. Be sure to wear a hat that covers your ears on those cold days. You may even consider wearing a scarf to cover your face. Most heat loss occurs from the head, and windchills in winter can result in exposed flesh freezing in a matter of minutes. If you own an automobile, make sure your car has an in-block heater.