Coldness; the state or degree of being cold — the sensation or condition of low temperature.
冬の寒さが厳しくて手がかじかむ。
The winter cold is severe and my hands get numb.
部屋の寒さを防ぐために窓に断熱シートを貼った。
I put insulation film on the window to prevent the room from getting cold.
寒さ対策として暖房だけでなく服装も重要だ。
As a measure against the cold, clothing is as important as heating.