Cold weather in winter often means the presence of the sun. As the power of the winter sun is very weak at this latitude, sunshine does little to warm the frozen photographer. However, it still is useful to create light effects around trees and branches.
Today's mid day view from the veranda of my girl friend's apartment, -20C thus not as cold as during the last night when we experienced down to -26C. Nikon Df, 105/1.8 Nikkor AIS @ f/11. The shadows are intensively cold blue as they only receive diffuse light from the sky.