Why is it cold when snow melts?

1, when the snow melts, it is often sunny. The low altitude is controlled by cold air pressure, and the temperature begins to drop. So although the sun is shining, the temperature is still at the "freezing point"; At the same time, the melting of snow itself will absorb a lot of heat from the surrounding environment.

In addition, when the snow melts, the air humidity will rise, which will reduce the warm-keeping effect of clothes, and people will naturally feel colder. Compared with sunny weather, the feeling of cold is more prominent. Therefore, when snow melts, it is colder than when it snows.

The reason for the snow is not cold:

First, the atmosphere needs to contain cold ice crystal nuclei; The second is sufficient water vapor; The third is below 0℃ (freezing point). Before or when it snows, cold air usually carries moisture, and when water vapor turns into snowflakes, it also releases some heat, so the temperature drop is not much, so it will not be very cold before or when it snows.

Extended data:

Tips for keeping warm in snowy days:

1, the core keeps warm.

As the temperature drops, there are tricks to increase clothes to keep warm. Keep your lower limbs warm and your whole body will be warm. Your hands and feet are cold. Try not to always use a hot water bottle or keep the baby warm. You can soak your feet for 20 minutes several times and massage the soles of your feet.

2. Ingenious indoor heating

Improving the home environment can raise the temperature. Some old aluminum alloy doors and windows and steel windows have no sealing strips, and some new sealing strips for doors and windows will age after being used for a period of time, so sealing strips can be added and replaced. If the home is a solid wood sofa or bed, you can wrap the wooden seat with fabric materials.

References:

Popular Science China-"Snow is not cold, snow is cold", is it true?

References:

People's Network-Teach you several ways to keep warm, so as not to be too cold this winter.