When was the first frost in 2023?

The frost in early 2023 began at 0:20:39 and 65438 on Tuesday, October 24th, 2023 (the 10th day of the ninth lunar month).

Formula for calculating the first frost date: [y * d+c]-Interpretation of L formula: Y= two digits after the number of years, D=0.2422, L= leap year, 2 1 century C=23.438, and 20th century C=24.2 18. For example, the frost date in early 2088 =-= 44-22 = 22,65438+1the first frost on October 22nd. Exception: calculation result in 2089 plus 1 day.

Characteristics of first frost

The solar term of the first frost means that the weather is getting colder and first frost begins. The average temperature in the area south of south latitude is around 16℃, and there are three solar terms before the first frost day. In the southern valley of South China, frost can only be seen in the dead of winter.

Of course, even at the same latitude, the temperature and humidity of the air close to the stratum are different because of the different altitude and topography, and the first frost period and frost day are also different. In the first frost season, the cool autumn wind blew to Guangzhou, the flower city. The average temperature in northeast China, eastern Inner Mongolia and most parts of northwest China has been below 0℃.