Why is it colder temperature before sunrise?

* The Earth's surface cools down at night. During the day, the Earth's surface is heated by the sun. However, at night, the sun is no longer shining, so the Earth's surface starts to cool down.

* The air near the ground cools down faster than the air higher up. This is because the air near the ground is in contact with the cooling Earth's surface, while the air higher up is not.

* The wind can make it feel even colder. When there is a wind, it can carry away the warm air near our bodies, making us feel even colder.

All of these factors can contribute to the colder temperatures that we often experience before sunrise.