What causes frost? Is frost a weather phenomenon?

In early winter, a "killer" of crops - frost may appear at any time. We must understand and take precautions in advance to minimize the loss as much as possible. Today we mainly share with you what causes frost, whether frost is weather-related, and how many types of frost there are according to the time of occurrence. I hope it will be useful.

Contents of this article

1. What causes frost?

2. Is frost a weather condition?

3. Frost is divided into several types according to the time of occurrence

What causes frost?

Frost is caused by a sudden drop in temperature. When the air temperature drops suddenly and the surface temperature drops below 0℃, frost will form. It usually occurs in autumn, winter and spring. It is different from frost. Frost is white ice crystals that condense directly on objects when the water vapor in the air near the ground reaches saturation and the ground temperature is below 0℃. Frost is not necessarily frost.

Is frost the weather?

Frost is a type of weather. It is a common agricultural meteorological disaster, which refers to a sudden drop in air temperature, and the surface temperature drops sharply to below 0℃, causing damage to crops or even death. It usually occurs in autumn, winter and spring. It is different from frost. Frost is white ice crystals that condense directly on objects when the water vapor in the air near the ground reaches saturation and the ground temperature is below 0℃. Frost is not necessarily frost.

Frost is divided into several types according to the time of occurrence

Depending on the season in which frost occurs, frost can be divided into spring frost, autumn frost, winter frost, early frost and late frost.

1. Spring frost. In the early stages of spring crop growth, overwintering crops begin to turn green, warm-loving crops have been sown and sprouted, and fruit trees have reached the flowering stage. This type of frost can cause great losses to crops. The later the spring frost occurs, the more serious the damage to crops. Early frost refers to the latest frost in spring.

2. Autumn frost. This refers to the frost that occurs in early autumn, when the weather is not yet cold and crops have not yet stopped growing. The appearance of frost often causes crops to stop growing, resulting in reduced yields and deterioration of quality. The earlier the autumn frost occurs, the greater its harm. Late frost refers to the earliest frost in autumn.

3. Winter frost. In southern my country, when strong cold air moves southward and is accompanied by nighttime radiation cooling, the ground or near-ground temperature drops below the minimum temperature that can cause damage to crops, and frost forms. This type of frost is more harmful to southern my country.