What's the climate like in Las Vegas? Is it a Mediterranean climate?

Las Vegas is located on the edge of the Nevada desert in the United States, surrounded by mountains ranging from 1000 meters to 3000 meters. Las Vegas has four distinct seasons. Summer is a typical desert climate, and the temperature at noon is often as high as 38゜C, while the temperature at night is relatively cool. There are frequent thunderstorms and the temperature is above average. The winter climate is mild and suitable, and the average temperature during the day is about15 ゜ C. Although very hot weather occasionally occurs, spring and summer are still the most pleasant seasons. Las Vegas is rarely attacked by bad weather, and it is one of the regions with the lowest relative humidity among all the big cities in China. Surrounded by desert, it's as dry as death valley. Because of the lack of rain, the air will be dry and have a subtropical desert climate.