Slight cold is not cold, and everyone is happy sooner or later. what's the meaning

A slight chill means that it will be sunny and warm as spring, which indicates that it will be colder in spring. Elegant and comfortable in the morning and evening. According to the relevant public information, there is also a saying that "the slight cold is not cold, and the Qingming quagmire", which means that the weather in the slight cold solar terms is not too cold, so there will be a lot of rain during the Qingming period next year.