What autumn festivals are introduced?

1. The traditional autumn festivals in China mainly include: Tanabata on July 7th of the lunar calendar, Mid-Autumn Festival on July 15th of the lunar calendar, Mid-Autumn Festival on August 15th of the lunar calendar, Double Ninth Festival on September 9th of the lunar calendar, and beginning of autumn, Chushu, Bailu, Autumnal Equinox, Cold Dew and First Frost among the 24 solar terms; Teachers' Day, National Day, Thanksgiving Day, Halloween and so on in the solar calendar.

2. In autumn, the most obvious change of natural landscape is in trees. In the city, a lot of fallen leaves will be cleaned up, and many tourists will flock to the mountains to see the red leaves. Autumn, the third season of the year, is a transitional season from summer to winter. The lunar calendar is from beginning of autumn in July to beginning of winter in September, the solar calendar is from 9: 00 to 1 1, and the astronomical vernal equinox starts from the winter solstice.

3. Meteorologists study phenology as follows: After the intense summer heat, the average temperature for five days stays below 22 degrees, which means that it enters autumn and ends below 10 degrees.