Autumn is the month when it begins and ends

Autumn begins in August and ends in early November. The beginning of autumn is the beginning of August, and the beginning of winter is the beginning of November. Autumn is one of the four seasons of "Spring, Summer, Autumn and Winter". In China, it is traditional to take the "beginning of autumn" of the 24 solar terms as the starting point of autumn and the end of the beginning of winter. <

1. Autumn starts in August and ends in early November. The beginning of autumn is the beginning of August, and the beginning of winter is the beginning of November. Autumn is one of the four seasons of "Spring, Summer, Autumn and Winter".

According to modern meteorology, the autumn in the north temperate zone is on August 23 (summer heat) and November 20 (light snow); Autumn in the southern temperate zone falls on February 19 (Northern Hemisphere rain) and May 21 (Northern Hemisphere Lesser Man). In China, it is traditional to take the "beginning of autumn" of the 24 solar terms as the starting point of autumn and the end of the beginning of winter.

2. Entering autumn means that rainfall, storms, etc. tend to decline or decrease, and everything in nature begins to grow from lush to mature. The beginning of autumn does not mean the end of the hot weather, the so-called "hot in the dogs", according to the calculation method of "the three dogs", the beginning of the autumn to the summer is often still in the "three dogs" period, so the weather in early autumn is still very hot, and the real coolness is generally after the Bailu solar term. The watershed between hot and cool is in autumn, not at the turn of summer and autumn.

The climate in autumn is divided into two phases, the early autumn is "muggy", and the mid-autumn tends to be "dry" and "cool". Generally speaking, in autumn, the altitude angle of the sun gradually decreases, and the temperature gradually decreases from heat. The autumn breeze is cool, the scorching heat is gone, the fruit is full of branches, and the fields are golden.

Autumn in the Northern Hemisphere begins in September and ends in November. Autumn in the Southern Hemisphere begins in March and ends in May.

Autumn begins in September and ends in November, autumn is also known as autumn, the third season of the year, the transition season from summer to winter, September to November in the northern hemisphere, March to May in the southern hemisphere, and astronomy from the autumn equinox to the winter solstice. Meteorologists study phenology based on the following: after a hot day, the five-day average temperature is below 22 degrees Celsius, and autumn is considered to be autumn, and autumn ends when it is below 10 degrees.

Autumn temperatures drop gradually, but generally slower than winter. Due to the difference in wet and dry conditions, different regions will have cold and rainy weather conditions, or dry and cool weather conditions. In the colder late autumn, due to the large temperature difference between day and night, the water vapor transpired during the day will condense at night, either as dew or as frost.

In autumn, the direct point of the sun gradually moves southward from the northern hemisphere, and after the autumnal equinox, it crosses the equator and the sun shines directly on the southern hemisphere. From the Northern Hemisphere, the angle of the sun gradually decreases, and the gap between day and night becomes smaller. At the autumnal equinox, the days and nights are long.

In autumn, the distance between the Earth and the Sun gradually increases. From the plane of the zodiac, the Sun is placed on the background of Leo, Virgo, Libra.

1. Autumn starts in August and ends in early November.

2. Autumn is one of the four seasons of "spring, summer, autumn and winter". In China, the "beginning of autumn" of the 24 solar terms is traditionally used as the starting point of autumn. In the autumn season, in nature, the yin and yang energy begins to change, the yang energy gradually recedes, the yin energy gradually grows, the climate turns from hot to cold, and everything grows with the cold and gradually declines, which is the season of alternating heat and cold.