What's the weather like in Chengde all year round?

Chengde, formerly known as Jehol, is located in the northeast of Hebei Province. It is one of the first batch of 24 national historical and cultural cities, one of the top ten scenic spots in China and one of the top 40 national key scenic spots. It is a national first-class open city. 1994 Chengde's summer resort and its surrounding temples have been approved by UNESCO as a world cultural heritage, thus making Chengde a world cultural city. The terrain of climatic resources [1] is gradually decreasing from northwest to southeast, so there is obvious difference between north and south, with three-dimensional distribution of meteorological elements and diverse climate. Cold and little snow in winter; Drought and little rain in spring; Mild and thunderstorm in summer; Autumn is cool, the temperature difference between day and night is large, and the freezing damage is serious. Temperature: The annual average temperature gradually increases from north to south. The annual variation characteristics of the average temperature are: the temperature rises month by month from February, July is the hottest month, August is the beginning month of cooling, and 1 month is the most Leng Yue. Precipitation: the annual rainfall is 402.3-882.6 mm, 627. 1-882.6 mm in the south, with a maximum of 1500.2 mm and a minimum of 298.0mm；; Middle 501.0—609.1mm, maximum 923.8mm, minimum 206.8mm North 402.3-5 15.4 mm, maximum 885.6 mm and minimum 249.0mm；; Bashang 411.6 —— 514.0mm, with a maximum of 627.9mm and a minimum of 298.8mm Due to the influence of topography, the windward slopes of Wuling Mountain and seven old Tushan are two rainy areas in our area. The distribution of rainfall has obvious dry-wet dividing line and seasonal variation characteristics. The rainfall from March to May in spring is 55.5-74.7mm, accounting for 10- 12% of the annual rainfall. The rainfall from June to August in summer is 24 1.5-542.4 mm, accounting for 56-75% of the annual rainfall. The autumn rainfall is 66.4- 102. 1mm, accounting for14-16% of the annual rainfall; Rain and snow are scarce in winter, accounting for 1-3% of the annual rainfall. Wind: Our region belongs to monsoon climate zone, and the change of wind direction has obvious seasonality. Although influenced by mountainous terrain, it still has its dominant characteristics after filtering out the changes caused by local factors. In winter12 ~ February, northerly winds predominate, and in summer, southerly winds predominate from June to August. Spring and autumn are the transitional seasons of these two kinds of airflow, with spring near summer and autumn near winter. In addition to the static wind, the maximum wind direction in the whole year is southwest and northwest. Average annual wind speed 1.4-4.3m/s, and 3.3-4.3m/s on the dam. The number of windy days in the whole year is 1 1-63. Fengning, Weichang, Longhua, Chengde and other counties have windy days, up to 63-93 days. Up to 1 16 days on the dam.