Climate in China

Because of its shear size the climate of China is extremely diverse; subtropical in the south to subarctic in the north. Monsoon winds, dominate the climate. Differences in latitude, longitude, and altitude give rise to sharp variations in rainfall and temperature.

China's northernmost province Heilongjiang has a subarctic climate, its southernmost point, Hainan Island  has a tropical climate.

Temperature differences in winter are great, but in summer the diversity is considerably less. For example, the northern portions of Heilongjiang Province experience an average January mean temperature of below 0 °C, and the reading may drop to minus 30 °C; the average July mean in the same area may exceed 20 °C. By contrast, the central and southern parts of Guangdong Province experience an average January temperature of above 10 °C, while the July mean is about 28 °C.
The northwest has the lowest annual rainfall in the country and no precipitation at all in its desert areas. China experiences frequent typhoons, floods, monsoons, tsunamis, and droughts.