Why is the well water temperature higher in winter

People who still use well water at home will find an obvious phenomenon, that is, the well water is warmer in the morning. The water temperature is indeed higher than that of tap water. But what causes this difference? The following will give you a detailed introduction to what causes this water temperature difference, so that we can better distinguish and understand the water temperature.

The underground temperature is not always consistent with the ground temperature. It should be said that the difference is too great. The ground temperature rises due to the light and heat from the sun, and at a certain depth underground (especially at a depth like well water), the temperature inside the earth rises due to the heat from the sun.

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The heat generated cannot be conducted here. The temperature rise here still depends mainly on the heat from the sun received by the surface. Therefore, it takes a long time for this heat transfer to be fully realized. That is to say, when it is summer on the surface, it is still winter underground. When it is relatively "summer" underground, it is winter on the ground again. Therefore, the well water is hot in winter and cold in summer.

Netizens’ opinions: Because the groundwater temperature is a constant -4°C all year round, the water temperature is higher than the air temperature in winter, making people feel cool, and the opposite is true in summer.

Netizens’ opinions: In midsummer, the sun is scorching and the heat is unbearable, but deep underground it is cool, refreshing and extremely comfortable.

Why are the temperatures above ground and underground different? This is mainly related to the poor heat transfer function of the soil. During the hottest time of midsummer, heat waves on the ground cannot be transmitted quickly to the deep soil layer, but can only be transmitted slowly downwards. The underground layer is close to the ground, so the arrival of the hottest period is closer to the hottest period on the ground; the farther away from the ground, the greater the difference between the hottest period and the ground. Similarly, when it is coldest on the ground, the cold wave cannot quickly affect the deep soil layer, so the coldest period underground occurs much later than on the ground.

Because the deep soil is cool and refreshing when the ground is hottest, and warm and pleasant when the ground is coldest, well water and deeper groundwater are warm in winter and cool in summer.

I believe that after reading the above content, you should know the reason why the temperature of well water is higher in winter. Of course, in winter, you should pay more attention to keeping warm and do a good job of preventing cold and keeping warm to effectively solve the occurrence of some problems of cold.