What is the weather like in Chengde all year round?

Chengde, formerly known as "Rehe", is located in the northeast of Hebei Province. It is one of the first 24 national historical and cultural cities, China's top ten scenic spots, the top 40 tourist attractions, and a national key scenic spot. It is a national Class A open city. In 1994, the Summer Resort and its surrounding temples in Chengde City were approved by UNESCO as a world cultural heritage, thus making Chengde one of the world's cultural cities. Climatic resources [1] The terrain descends in steps from northwest to southeast, so the climate difference between the north and the south is obvious, and meteorological elements are distributed three-dimensionally, making the climate diverse. Winters are cold with little snow; springs are dry with little rain; summers are mild with thunderstorms; autumns are cool with large temperature differences between day and night and severe frost damage. Temperature: The distribution of annual average temperature increases from north to south. The annual change characteristics of the average temperature are: the temperature increases month by month starting from February, July is the hottest month, the temperature begins to decrease in August, and January is the coldest month. Precipitation: Annual rainfall is 402.3-882.6 mm, in the south 627.1-882.6 mm, with a maximum of 1500.2 mm, and a minimum of 298.0 mm; in the central part, 501.0-609.1 mm, with a maximum of 923.8 mm, and a minimum of 206.8 mm; in the north, 402.3-515.4 mm , the maximum is 885.6 mm, the minimum is 249.0 mm; the dam is 411.6-514.0 mm, the maximum is 627.9 mm, and the minimum is 298.8 mm. The windward slopes of Wuling Mountain and Qilaotu Mountain form two rainy areas in our district due to topography. The distribution of rainfall has the characteristics of seasonal changes with clear boundaries between dry and wet. The rainfall from March to May in spring is 55.5-74.7 mm, accounting for 10-12% of the annual rainfall; the rainfall from June to August in summer is 241.5-542.4 mm. It accounts for 56-75% of the annual rainfall; the autumn rainfall is 66.4-102.1 mm, accounting for 14-16% of the annual rainfall; winter rain and snow are scarce, accounting for 1-3% of the annual rainfall. Wind: Our area has a monsoon climate, and the wind direction changes with obvious seasons. Although it is affected by mountainous terrain, it still has its dominant characteristics despite filtering out changes caused by local factors. The northerly wind is dominant from December to February in winter, and the southerly wind is dominant from June to August in summer. Spring and autumn are the transition seasons of these two airflows. Spring is close to summer conditions, and autumn is close to winter. Except for calm winds, the most common wind directions in the year are southwest and northwest. The annual average wind speed is 1.4-4.3 meters/second, and the average wind speed on the dam is 3.3-4.3 meters/second. The number of windy days throughout the year ranges from 11 to 63. Fengning, Weichang, Longhua and Chengde counties have more windy days, with up to 63 to 93 days in most years. As many as 116 days on the dam.