Across 2019, temperatures were around 1 degree warmer than usual in Finland. However, last month temperatures were between 3-6 degrees warmer than average, leading to the Finnish Meteorological Institute labelling the beginning of the winter as "exceptionally" warm.
As well as forests full of leafy trees and mushrooms, large numbers of birds have begun wintering in parts of Finland, owing to warmer temperatures.
You can see more photos from the warmest January in years by scrolling through the gallery.
Image Credit: Roni Rekomaa / Lehtikuva