Is August autumn?

Autumn in the northern hemisphere is from September to 165438+ 10, and in the southern hemisphere it is from March to May. Autumn, also known as autumn, is the third season of all seasons.

The transition season from summer to winter is the solstice from autumnal equinox to winter. The standard for meteorologists to study phenology is: after the summer heat, five

When the average temperature is stable below 22 degrees, it is regarded as autumn, and it ends when it is below 10 degrees.

Solar terms in autumn

Beginning of autumn: The sun is located at longitude 135 degrees, and will intersect on August 7-9. Rainfall, storm, temperature and humidity tend to decrease or decrease.

Summer: The sun is located at the longitude of the Yellow River 150 degrees, and it is in the internode on August 22-24. It means that the summer heat is over here and the rainfall is gradually decreasing.

Millennium: The sun is located at 0/65 degrees of the yellow longitude/kloc, and the solar term passes on September 7-9. Dry, the temperature difference between day and night is large, and the weather gradually turns cold.

Autumnal Equinox: The sun is located at 0/80 degrees of the Yellow Meridian/KLOC, and the solar term passes on September 22-24. The sun shines directly on the equator, and the length of day and night in the northern and southern hemispheres is equal. The temperature difference between day and night gradually increases, and the temperature drops day by day.

Cold dew: The sun is located at the longitude 195 degrees, and the node of 101October 8-9. The temperature drops, the rain is dry, and the morning dew is colder.

First frost: the sun is located at longitude 2 10, and the node is 65438+1October 23-24. It's cold in the morning and evening and hot at noon. Autumn dryness is obvious, and the scene in late autumn is obvious. Cold air is going south more and more frequently.