What are the four-letter words that mean cold weather?

Snowy: Describing snow as very white.

Snowing heavily: describing the snow being very heavy.

Drip of water turns into ice: describes the weather being extremely cold.

The cold wind is biting: biting, biting cold. Describes very cold.

The sky is cold and the ground is frozen: describing the weather as being extremely cold

The sky and the snow are all over the sky and the ground is covered with ice and snow, describing the weather as being very cold.

Drips of water turn into ice: Water droplets turn into ice as soon as they fall. Describes a very cold weather. Example: "The weather in the north is very cold, and dripping water turns into ice."

Cold hands and feet: describes the cold weather.

Bitter cold wind: The cold wind makes bones ache. Describes the weather as windy and cold. Example: "In the early morning of winter in the north, dripping water turned into ice, and the wind was biting."

Bitter cold: very cold, mostly used to describe the weather. For example; "For the past nine days, the wind has been blowing and the chill is overwhelming. This is another extremely cold winter."

天冰地剼: Describes the weather being so cold that the ground is cracked by the frost. Example: "This cold winter is the golden season for logging."

bone-chilling: the cold air penetrates the bones, describing the weather as very cold. Example: "When the dawn had not yet arrived, I felt very cold to the bone, so I hurried back to the dormitory, picked up some clothes and put them on."

Snow cellar and ice sky: a severely cold area, containing severe cold meaning. Example: "The Han Dynasty envoy Su Wu worked for the Huns in the snowy and icy northern country for nineteen years."

Snow and wind: wind and snow. Describe severe cold.