There is a cold spring, what other abnormal solar terms are there?

Cold in late spring is not a solar term, but a climate.

There is also Xiaoyangchun, which is called "Xiaoyangchun in October" in some parts of China. This means that during the winter solstice and the light snow festival, the temperature will rise, and some fruit trees will bloom for the second time, showing the same warm weather in spring as in March.