There is a proverb that it will rain at the beginning of spring.

Since "beginning of spring" ranks first among the 24 solar terms, indicating that spring begins on this day, there have been many folk proverbs about the relationship between "beginning of spring" and weather and farming in China since ancient times. Please see:

The early spring is sunny with occasional rain.

It's sunny in early spring, so it's easy to plow.

Beginning of spring that day, it was raining, and it was wet until Qingming.

In the spring rain, the bull's head, seven seven forty-nine days of sorrow.

Spring water drenches the cow's head, and farmers worry for a hundred days.

When beginning of spring is frosted, the seedlings will rot in spring.

Thunder represents the Spring Festival, and it never stops raining.

In the twelfth lunar month, spring water comes early in beginning of spring, and late in beginning of spring in the first month.

There is plenty of spring rain every year, and there is no good farming every spring.

......

These are folk proverbs that have been circulating around for a long time. Some are more effective, some are not, or they are effective at A, and the opposite is true at B, so they can only be used as a reference, and they can't be trusted completely.