When does autumn 2019 in the Northern Hemisphere start?

On September 23, Google Doodle celebrated the fall of 2019 with a yellow drawing of the Earth wearing a yellow leaf.

This fall in the Northern Hemisphere starts from September 23 and ends on December 22. This is the time when most crops are harvested and many species will lose their leaves. In the fall, the day will get shorter and the weather will be cooler, especially at high latitudes. In temperate regions, rainfall this season is gradually increasing.

There are many ways to determine when autumn comes. According to astronomy, the autumn season begins at the time of equinoxing, about 23/9 in the Northern Hemisphere and 21/3 in the Southern Hemisphere and ending in the winter solstice, about 21/12 in the Northern Hemisphere and 21 / 6 in the Southern Hemisphere.

Google changes the doodle to offer autumn 2019 in the Northern Hemisphere, starting September 23.(Screenshots).

According to meteorologists, autumn is calculated from March to May in the Southern Hemisphere and from September to November in the Northern Hemisphere. According to the Chinese calendar, the fall season starts from the autumn period, about 7/8 and ends in the winter period, about 7/11 solar calendar.

In addition, autumn is often defined as the school season in many countries, due to the time of falling in September in the Northern Hemisphere and March in the Southern Hemisphere.

In Western culture, people often personize autumn as a "beautiful woman" , healthy and adorned with ripe fruits, vegetables and cereals during the season.

Most ancient civilizations promote harvest festivals in the fall. Some of the major holidays celebrated this season include: Thanksgiving, the Halloween end of fall season in the US and Canada; Jewish Sukkot festival; many North American aboriginal festivals associated with food from ripe, natural fruit trees; Mid-Autumn Festival of Chinese and Vietnamese people and many other festivals.