Page "Geography of China" Paragraph 14

Parts of China's northernmost province Heilongjiang has a subarctic climate ; its southernmost part, Hainan Island ( an island away from mainland China ), has a tropical climate.

Temperature differences in winter are great, but in summer the diversity is considerably less.

For example, the north of Heilongjiang has an average January mean temperature of below, and the reading may drop to ; the average July mean in the same area may exceed.

By contrast, the central and southern parts of Guangdong province experience an average January temperature of above, while the July mean is generally above.