What's the temperature in Tianjin in the Millennium?

Around September 8 of Gregorian calendar, the solar calendar is 165, which is a millennium solar term. In the Millennium, the sky is crisp, the clouds are light and the wind is light, the temperature is getting colder, and the dew can be seen on the vegetation at night. Dew is water droplets formed by condensation of water vapor on the ground or near-earth objects due to temperature drop. At this time, the weather turned cold and the water vapor on the ground was the most condensed. So the Millennium actually means that the weather has turned cold. A hard spring and summer, experienced ups and downs, sent away the heat and summer, ushered in a happy harvest season. As the saying goes: "A thousand years is divided into autumn nights, and one night is cold." At this time, the summer monsoon is gradually taken over by the winter monsoon, with more northerly winds and more frequent cold air heading south. In addition, the position of the direct sunlight on the ground moves south, which shortens the sunshine time and weakens the sunshine intensity in the northern hemisphere. At night, it is often partly cloudy and sunny, and the ground radiation dissipates quickly, so the temperature drops gradually.