Most of the territory of China is located in the temperate zone. However the country has great differences that depend on monsoon climate, latitude and altitude. The central and the south-east are hot and humid, and the north and north-east are quite dry. China is crossed by 35 parallels and presents a wide variety of climates. In many areas, the summer is hot and rainy, with a high humidity, while winter is mostly dry. In northern China, more than 80% of the rainfall is concentrated in the summer months, while in the south it drops to 40%. In the south, in addition, during the rainy seasons are frequent typhoons. To the north of the Tzang Tze winter can be very cold. Overall, the northern regions show a distinct change of seasons.