In "Kanadehon Chushingura," it is dramatized to be snowing that day, however, in reality, the weather was very clear with full moon yet it was very cold.
この時に雪が降っていたというのは『仮名手本忠臣蔵』での脚色であり、実際は冷え込みが厳しかったが満月のほぼ快晴だったといわれている。