A poem expressing the daily change of temperature.

"In April, the beauty of the world is exhausted, and the peach blossoms in the mountain temple."

It reflects the vertical distribution of temperature. It is precisely because the temperature decreases with the elevation of the terrain (every elevation of the terrain 1000m, the temperature decreases by 6℃), which causes the different geographical phenomena of peach blossom periods on the mountain and under the mountain.

"sunrise in the east, sunset in the west, and the road is blind."

At the same time, the weather in different places is different. It is also an excellent portrayal of the rain. We can know from the poem that convective rain is characterized by large precipitation intensity, small range and short duration.

"In February, Jiangnan is full of flowers, and cold food in other places is far from sad."

That is to say, the climate in the south and north of China is quite different. Jiangnan in February is full of flowers, and other places are very cold.

"I'm afraid Qionglou Yuyu is too cold up there." It means that the higher the terrain, the lower the temperature.

"It snows in Tianshan Mountain in May, and it only blooms cold." ：

One is that the higher the terrain, the lower the temperature, and the other is that Tianshan Mountain is high in altitude.

"Warm is still light and cold, and the wind and rain come late."

This shows that the temperature in China in spring is changeable and unstable.

"Why do Qiangdi complain about willow trees? The spring breeze is just Yumen Pass. "

Yumenguan is located in China's non-monsoon area, and it is difficult for warm and humid summer monsoon to reach here. "Spring breeze" can be understood as summer monsoon, and the western part of China belongs to temperate continental climate, which is less affected by summer monsoon and less rainy.