Is Turpan hot now? What hours are the hottest in a day? Thank you for your answers.

The special geographical location of Turpan Basin and the topographic and geomorphological features in the basin have formed totally different climatic characteristics from those in the neighboring areas. The flaming mountain and Yanshan mountain range in the basin run through the center and are divided into two parts: Shannan and Shanbei. The climate of Shannan and Shanbei cannot be completely compared.

Turpan basin belongs to a unique warm temperate arid desert climate. The main features are: dry, high temperature and windy. In the basin, the sunshine time is long throughout the year; Large evaporation; There is little precipitation, but it is local. South of the Flame Mountain, the summer is long and hot, the winter is less cold, and there is less wind and light snow. In spring, the temperature rises rapidly and is unstable, dry and rainy, and the wind is strong. Autumn is crisp, the temperature drops rapidly, and the temperature difference is large. Compared with Shannan, the northern part of Huoyan Mountain has four distinct seasons, with severe cold in winter, extremely hot in ciel phantomhive and more precipitation. Spring and Autumn is half a month longer than Shannan.

1, temperature situation

The annual average temperature in Turpan is obviously divided into two regions, the south and the north, with a difference of nearly 2℃. There are also differences in annual average temperatures below sea level, above sea level, Gobi, desert and mountainous areas in the basin. The lowest annual temperature is 5438+ 10 in June, and the hottest is July. The annual temperature is between 40-47.5℃. The temperature changes sharply in spring and autumn, especially in spring, and the monthly average temperature rise rate is about 65438 00℃.

Climate characteristics in winter (65438+February-February): dry and cold, short cold period, little wind and light snow, no stable snow and sunny weather. The average winter period is Turpan, Toksun 165438+1October 23rd, Shanshan165438+1October16. The lowest temperatures in winter were -25.2℃, -26.3℃ and -24.6℃ respectively, which all appeared in the middle and late 1970s. Maximum frozen soil depth in winter: 83cm in Turpan, 86cm in Shanshan 1 17cm in Toksun.

Climate characteristics in spring (March-May): rapid and unstable temperature rise, dry and little rain, severe spring drought, strong wind and early spring. Average spring period (when the average temperature is over 0℃): Turpan February 19, Shanshan February 28, Toksun February 2 1.

Climate characteristics in summer (June-August): early summer, abundant sunshine, long hot period, high temperature and hot air, less precipitation but strong locality, often leading to local floods. Average summer periods in two counties and one city: April 27th in Turpan, May in Shanshan 12 and May 2nd in Toksun. The average days of high temperature (maximum temperature ≥35℃) are 98 days, 765 days, 438+0 days and 92 days respectively. The days of extreme high temperature (maximum temperature ≥40℃) are 34 days, 13 days and 29 days respectively. The highest temperatures of vomit, fat and rest were 47.7℃, 46.5℃ and 48.0℃, respectively.

Climate characteristics in autumn (September-165438+1October): fresh air, clear weather, rapid cooling, large temperature difference between day and night, few windy days, abundant sunshine and scarce rainfall. Average first frost period: Turpan165438+10.4, Shanshan 65438+10.21,Toksun 65438+10.29.

2. Overview of precipitation

Turpan is the least and driest place in China and one of the driest areas in the world. The annual average precipitation is 16.4mm, and it is unevenly distributed, with large seasonal differences, and there is little continuous precipitation, mostly intermittent. There are more mountains than basins, more in the north and less in the south, decreasing gradually from north to south, and decreasing more and more toward south; Days without precipitation are longer. At the same time, the annual precipitation changes greatly year by year; The most abundant year in northern Shaanxi can reach 76.8 mm (Shanshan 1998), and the youngest is only 12.6 mm (Shanshan 1985). The year with the most precipitation in Shannan can reach 33.4 mm (Turpan 1998), and the year with the least precipitation is only 4.3 mm (Turpan 1976). The annual precipitation is the highest in summer, followed by spring.

3, sunshine and evaporation

Turpan has strong solar radiation, long sunshine time and rich light energy. The annual average total radiation is 5938.3 MJ/m2, the longest is 6397.0 MJ/m2, and the youngest is 5648.2 MJ/m2. The maximum value in the middle of the year appears in July, which is 680.3-800.2 MJ/m2, and it is greater in spring than in autumn. The average annual total sunshine hours is 3056.4 hours, the maximum is 3349.6 hours, and the minimum is 2829.7 hours, and the annual sunshine percentage is 69%.

Turpan has a dry climate and strong evaporation capacity, with an average evaporation of 2837.8 mm; The change characteristics of evaporation are: it gradually increases from north to south, and the evaporation is the most vigorous in late spring and early summer, accounting for more than 75% from April to August.

4. Wind resources

Wind is also one of the important natural features of Turpan. Strong winds occur in March 3- 10/0 and are strongest in March-June, especially in May, and the wind direction is mainly northwest wind. The terrain of Turpan is very different, the heating area is large and the temperature range is large, which leads to windy weather. Strong winds are mainly affected by local and large weather systems. The former is generally below 10, with short duration and little harm. The latter is fierce and lasts for a long time, and the wind force is above 10, which is very harmful. Turpan is rich in wind energy resources. According to the statistics of Toksun Weather Station, the number of gust days (wind speed ≥ 17.0m/s) above level 6 is 80.3 days per year, the longest 1985 is 127 days per year, and the smallest 1997 is 35 days per year. Especially in the tuyere of Turpan, wind energy resources are more abundant. For example, Baiyang Valley, which is about 100 km long and 10 km wide from Dabancheng to Toksun, has obvious narrow tube effect and strong pressure gradient inside and outside the basin, and is called "wind bank". Therefore, Turpan has inexhaustible, low-cost, pollution-free wind energy resources, and has practical development and application potential.