A white birch tree under my window has spread its branchesA white birch tree under my window has spread its branches
The first snow this year as it falls on coniferous treesThe first snow this year as it falls on coniferous trees
Сильный холод (с температурой воздуха ниже нуля). Холодная погода (с температурой воздуха ниже нуля).