It snows in August in Chabuchar County, Xinjiang, and in September in Mohe, Heilongjiang. What are the similarities and differences between these geographical conditions?

Chabuchar County in Xinjiang and Mohe River in Heilongjiang are on the border of our country, one in the northernmost part of the west and the other in the northernmost part of the east. They are all in the northernmost part, so the annual average temperature is relatively low, which is the first place to receive cold air. The climate is changeable, and it is normal to snow. It's all in the north. It must be cold. The climate is changeable and varies greatly from place to place.

It is easier to snow at high altitude. Generally speaking, the higher the altitude, the lower the temperature. Because the main direct heat source of troposphere atmosphere is the ground, the farther away from the ground, the less ground radiation and the lower the temperature. Every altitude 100 meters, the temperature drops by 0.6 degrees Celsius (vertical temperature drop rate).

Let's look at the geographical location of the two places.

Located in the west of Yili Kazak Autonomous Prefecture, Xinjiang, China, at the southern foot of Yili River and the northern foot of Wusun Mountain, a branch of Tianshan Mountain, it faces Yining City, the capital of Yili Prefecture, across the river, and borders Kokdala City and Kazakhstan in the west. Chabuchar county belongs to the continental climate of the north temperate zone, with mild and dry climate and distinct four seasons. Winter and spring are long, winter is cold, summer and autumn are short, summer is hot, precipitation is little, and the annual average temperature is only 7.9 degrees Celsius.

Mohe City is the county with the lowest temperature in China. Mohe City is located in the northwest of Heilongjiang Province. Due to the alternating influence of continental monsoon and maritime monsoon, the climate is changeable and the local climate is quite different. Winter is cold, dry and long; In summer, affected by subtropical ocean air mass, there is abundant rainfall and sunshine. Suitable for the growth of cold-tolerant crops, but prone to floods and low temperature damage; In spring and autumn, the climate is changeable due to the alternation of winter and summer monsoon. In spring, it is dry and windy with little precipitation, which is prone to forest fires; In autumn, the temperature drops suddenly and there is often cold air.

Latitude also has a great relationship. In low latitudes, the influence of cold air is less, while in high latitudes, the influence of cold air on temperature is greater.

So as long as it meets the conditions of snow, it has nothing to do with the month.