When does winter begin?

Winter is divided according to the change of astronomical phenomena, starting from "beginning of winter" (the bucket refers to the northwest, and the sun reaches 225 degrees of the yellow longitude) and ending at the next "beginning of spring". According to the temperature change, winter begins when the average temperature drops below 10 degrees Celsius, and ends when the average temperature is above 10 degrees Celsius.

1. Winter is divided according to the change of astronomical phenomena, starting from "beginning of winter" (meaning northwest, and the sun reaches 225 degrees of the yellow longitude) and ending at the next "beginning of spring". According to the temperature change, winter begins when the average temperature drops below 10 degrees Celsius, and ends when the average temperature is above 10 degrees Celsius.

2. beginning of winter, one of the 24 solar terms, bucket handle points to the northwest, and the longitude of the sun reaches 225 degrees, which will be between July and August in Gregorian calendar165438+1October. Beginning of winter is a seasonal solar term, which means that it will enter winter from now on, which means that wind and rain, humidity, light and temperature are at a turning point, and the climate begins to transition from autumn to winter.