Is there dew at night after the first frost?

After the first frost, there will be dew at night

Under normal circumstances, frosting begins with the first frost solar terms all year round. Before the first frost solar term, the air temperature at night is above 0℃, and the water vapor in the air will not condense into frost. At this time, there is only dew. Only after the arrival of the first first frost solar term will the air temperature drop below 0℃, making the floating water vapor in the air condense into frost and fall down. Therefore, the main reason for the formation of the first frost is the temperature drop at night. The arrival of the first frost solar terms tells people that autumn is coming to an end and winter is coming. It reminds everyone that the temperature is low in the morning and evening, so we should wear more clothes. In rural areas, it is necessary to do a good job in cold prevention and antifreeze of crops that are not tolerant to low temperature, improve the quality of agricultural products and reduce economic losses.