What are the poems about Qingming?

The poem about Qingming is Du Mu's Qingming, and the whole poem is as follows:

It rained a lot during my stay in Tomb-Sweeping Day.

Pedestrians on the road want to die.

Excuse me, where is the restaurant?

The shepherd boy just laughed and didn't answer Xingshan Village.

The first two sentences are famous weather proverbs. Why does it always rain in Tomb-Sweeping Day? First, when winter goes and spring comes, the cold air gradually weakens, and the warm and humid air on the ocean begins to move northward actively. Before and after Qingming, cold and warm air often meet, thus forming rainy weather. The second is that there is more low pressure in spring. The clouds in the low pressure move fast, the wind is strong and the rain is urgent. Whenever the low pressure passes, there will be rainy weather. Thirdly, before and after Tomb-Sweeping Day, there was a lot of water vapor in the atmosphere, which easily condensed into Mao Mao rain at night. For these reasons, there are many rains during the Qingming Festival.