Xi'an is a warm temperate semi-humid continental monsoon climate with four distinct seasons,mild climate,moderate rainfall.Spring warm,dry,windy; hot and rainy summer,and more thunderstorms; cool autumn temperatures downhill,autumn drench obviously; winter cold,foggy,less rain and snow.
　　Xi'an different climate periods:the warmer spring period (April 1 to 30 days),early summer dry period (May 1 to June 20),early summer rainy period (June 21 to July 20),Summer drought period (July 21 to August 20),early autumn rainy period (August 21 to October 10) and the cool autumn (October 11 to 31 days) to six periods.