Under what weather conditions is the temperature difference between day and night the smallest?

The temperature difference between day and night is the smallest on cloudy days, and the temperature is lower on cloudy days than on sunny days due to the reflection of clouds. There are clouds on cloudy days at night, and the atmosphere has strong reverse radiation and high temperature, so the temperature difference on cloudy days is small.

1, cloudy weather introduction:

A cloudy day means that the sky is blocked by clouds, and the light is very dark, so you can't feel the sun directly. The frequency and duration of cloudy days are different in different regions and seasons, but their common feature is that the weather is usually cool and humid.

2. The formation of cloudy weather:

(1) Precipitation process: When water vapor is cooled by the atmosphere to form clouds, it can lead to cloudy days, especially in humid climate, the rainfall is often greater, making the clouds thicker and denser.

(2) Warm and humid air flow: Warm and humid air flow can carry a large amount of water vapor to rise and form clouds to prevent direct sunlight from reaching the ground.

3. Matters needing attention in cloudy weather:

(1) Pay attention to sun protection: Although the sunshine intensity is weak on cloudy days, people still need to pay attention to sun protection, especially outdoors, because the sun will still hurt the skin when it shines on the ground through clouds.

(2) Pay attention to traffic safety: In cloudy weather, there will still be some water and slippery roads, so vehicles need to pay attention to safety when driving.

Impact of cloudy weather:

1, effects on human body:

Cloudy weather will make the sun shine on the ground through the clouds, but the intensity of the sun will be weak, gentle to the human body, not easy to cause skin problems such as sunburn, and it will not make people feel too hot, making people feel more comfortable, and people will feel more calm and comfortable.

2, the impact on traffic travel:

Cloudy weather has little effect on traffic, because it will not affect visibility like rainy or foggy weather, nor will it affect people's willingness to travel like high temperature weather. However, on cloudy days, there will still be some water and slippery roads, so vehicles need to pay attention to safety when driving.

3, the impact on crops

Cloudy days have a great influence on crops, because the intensity of sunlight is weakened, which will lead to the decrease of photosynthesis, thus affecting the growth and development of plants. At the same time, on cloudy days, the temperature will also become lower, which is not good for some tropical plants.