What is summer like?

Summer, the second of the four seasons, is also called "Hao Tian" in English, and it is the hottest season in the northern hemisphere. China is used to long summer as long summer, and meteorological summer will be postponed to long Xia Hou for about 25 days. The ancients counted April, May and June of the lunar calendar as "summer"; Today, people regard May, June and July of the solar calendar as "summer".

Westerners generally say that the summer of solstice is divided into summer. The scientific division method is that the average temperature above 22℃ is "summer". Accordingly, when the average temperature keeps below 22℃, summer is over. In the southern hemisphere, 65438+February, 65438+ 10 and February are generally designated as summer.

June 2 1 or 22 is the summer solstice, and the sun shines directly on the Tropic of Cancer. At this time, the noon sun height in the Tropic of Cancer and its northern latitude reaches the maximum in a year. The day length at each latitude reaches the maximum in a year. In the area north of the Arctic Circle, the sun never sets all day, resulting in extreme day. In the area south of the Antarctic Circle, the moon never sets all night, resulting in the phenomenon of extreme night.

Extended data time division:

In China, summer begins with a long summer and ends in early autumn. In some parts of China, from summer solstice to September. Japan usually designates June, July and August as summer. In some parts of the northern hemisphere, it is called summer solstice to autumn. In the southern hemisphere, 65438+February, 65438+ 10 and February are generally designated as summer.

Related phenology:

In the hot summer, all kinds of creatures have come back to life, and most of them have started vigorous life activities. Many creatures will breed offspring in summer, various animals choose to mate and have children in summer, and plants compete to blossom and bear fruit. This is mainly due to the hottest climate in summer and abundant foods. For oviparous animals, eggs are easier to hatch.

Related solar terms:

The sun in the long summer is located at 45 degrees of the yellow meridian, and there will be solar terms from May 5 to 7.

Xiaoman sun is located at 60 degrees of the yellow meridian, and the solar term will be celebrated on May 20-22.

The awn seed sun is located at 75 degrees of the yellow meridian and intersects on June 5-7.

The summer solstice sun is located at 90 degrees of the yellow meridian, which intersects with June 2 1-22.

The light summer sun is located at 105 degrees, July 6-8.

In summer, the sun is located at 120 degrees, and the solar term passes on July 22-24.

References:

Baidu Encyclopedia-Summer