Which month is the hottest in outer Mongolia?

Outer Mongolia has a typical continental climate with a large temperature difference in the morning and evening. The lowest temperature in winter can reach -40℃, and the highest temperature in summer can reach 35℃. Spring in outer Mongolia is very short (May to June), until mid-May, when the weather gets warmer, trees sprout and grasslands turn green. In summer (July-August), the days are hot and the nights are cool, with strong ultraviolet rays, especially in desert areas. It will suddenly get cold in rainy days and at night. In autumn (September 9- 10/October), the weather is changeable, and it may suddenly get cold or even snow. It is freezing in winter (1 1 month to April). It snows almost every day in the long winter, and it can reach MINUS 40 degrees Celsius in the coldest time.