How to remember solar terms in geography?

Spring rains shake spring and clear valleys,

Summer is full, summer is summer, summer is summer.

Autumn dew and autumn frost,

It snows in winter, it snows in winter, and it's a little cold in winter.

Two festivals in a month remain unchanged,

A day or two at most.

In the first half of this year,

Come to eight or twenty-three in the second half of the year.

The vernal equinox, autumnal equinox, summer solstice and winter solstice are all in the second half of the month, which are March 2 1 vernal equinox, June 22 summer solstice, September 23 autumnal equinox and February 22 winter solstice.