The regional distribution and the characteris- tics of sunshine types of these 5 divisions are closely related with the characteristics of the weather and climate and with the scasonal variation of Yunnan.

• 这5个日照区的地域分布及日照类型特点与云南各地天气气候特征及其季节变化有密切的关系。 云南的多日照区，月均对应于日照百分率离差系数小值区。