Climate of Northern Europe

The Gulf Stream tends to Keep Northern Europe warmer than other locations with similar latitudes. Winters are also longer and summers are cooler with cold heavy snowfall. Between winter and early spring average rain fall across Europe is 20 to 60 inches. There is significant snowfall in cold winters and cool summers in the northern Mountain Ranges.

http://www.europe-trips.eu/European-climate-weather-conditions.html

http://www.worldatlas.com/webimage/countrys/euweather.htm