Which month is the coldest?

October, November and December, a * * * three months.

Generally speaking, in the northern hemisphere, the winter solstice in 65438+February is the coldest month of the year, that is, 65438+February in Gregorian calendar.

During the winter solstice, the earth runs on the ecliptic until the sun reaches 270 (winter solstice), and the position where the sun directly hits the ground reaches the southernmost point of the year. The sun is almost directly on the tropic of Capricorn (also known as the winter solstice daily line), and the sun is most biased towards the northern hemisphere. The winter solstice is the shortest day of the year in the northern hemisphere, and it absorbs the least heat from the sun, which is the reason for the cold weather.

The three solar terms of winter solstice, slight cold and severe cold are the coldest time periods in China, so folklore calls these three solar terms cold winter. On average, there will be 1 cold air going south in 5-7 days in winter. Cold current, freezing and blizzard games are the three major disastrous weather in winter.

Matters needing attention

In different areas, the duration of cold ending is different, generally from south to north, and the duration of warm will be later. Among them, there is no cold in the southernmost part, and it will be warm in the northernmost part after May. After the solar term from the winter solstice, the weather will be colder. This means that the coldest period of the year is coming.

Although the direct point of the sun slowly moved from the tropic of Capricorn to the north after the solar term of winter solstice, the weather trend in the northern hemisphere will be colder in the next month or two because the kinetic energy of solar radiation received on the earth is much lower than that lost.