noun
alternation of three cold and four warm days
Refers to the cyclical weather pattern in late winter and early spring where cold days and warm days alternate. Often used in weather forecasts or seasonal descriptions.
三寒四温で、だんだん春が近づいてきた。
With the alternation of cold and warm days, spring is gradually approaching.
According to the weather forecast, this week will have a pattern of alternating cold and warm days.