Why is the temperature 16 degrees, and it feels colder in winter than in summer?

Somatosensory temperature is a feeling that people get physically or mentally after contacting with the outside world through their own skin and other sensory organs. Somatosensory temperature is not only related to temperature, but also influenced by meteorological factors such as humidity, wind speed and radiation. So at the same temperature, feeling colder in winter than in summer is influenced by humidity and wind speed, not by any psychological effect.

The temperature broadcast in the weather forecast can only explain the degree of air temperature, but can't fully express the feeling of human body temperature, so many weather forecasts will have a dressing guide for your reference. Of course, normal people know that short sleeves can be worn in summer 16℃, and cotton-padded jackets may be worn in winter 16℃.

In fact, in addition to meteorological factors such as humidity, wind speed and radiation, subjective factors such as dress color and mood will also lead people to have different cold and warm feelings at the same temperature. For example, wearing black clothes will feel hotter than wearing white clothes, because black can absorb sunlight more.

Temperature difference between north and south in winter in China

This is closely related to the geographical location of China and the different climatic characteristics between the north and the south. To sum up, there are several main points:

1, China is a vast country with a long distance between north and south. Geographically, it is lower in the south and higher in the north, with a difference of more than 30 degrees. In the northern hemisphere, the sun shines directly into the southern hemisphere in winter, which leads to stronger or longer solar radiation intensity and sunshine duration and higher temperature in the south than in the north. This is due to the latitude position. Different latitude positions lead to different solar radiation.

In summer, the sun shines directly in the northern hemisphere. Although the radiation intensity in the south is still greater than that in the north, the sunshine time in the north is longer than that in the south, so the difference of solar radiation between the north and the south will not be as great as that in winter. The temperature difference is not that big.

2. The northern winter is affected by the cold high pressure in Siberia, Mongolia, and there are often cold air going south to form a cold wave, which greatly reduces the temperature. The south is affected by the warm and humid air flow from the ocean, and the winter is mostly mild. This is caused by the climate.