noun, adverb
mid-winter; cold season
Refers to the coldest part of winter, roughly from early January to early February. Often used in seasonal greetings, weather reports, and expressions like 寒中見舞い.
寒中見舞いを出す時期は、松の内が明けてから立春までです。
The period for sending mid-winter greeting cards is from after the New Year's pine decorations are taken down until the beginning of spring.
寒中は特に冷え込むので、体調管理に気をつけましょう。
It gets especially cold during the mid-winter season, so be careful about your health.