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云南省大部份地区从11月至次年4月是旱季,5月至10月是雨季。旱季和雨季有极明显的区别。以昆明为例,旱季的雨量是114.2毫米,雨日24.5天;雨季的雨量是980.2毫米,雨日98天;雨季的雨量与蒸发量之比为1:0.92,旱季的雨量与蒸发量之比为1:8.42(表1),其他各地旱、雨季总雨量、总雨日的对比亦大体如此。从四季的降雨量来看,又多集中在夏秋季节。占全年降雨量的60％以上。为了解决
Most of Yunnan Province is the dry season from November to April and the rainy season from May to October. There is a clear difference between the dry season and the rainy season. Taking Kunming as an example, the rainfall in the dry season is 114.2 mm and the rainfall is 24.5 days. The rainfall in the rainy season is 980.2 mm and the rainfall is 98 days. The ratio of rainfall to evaporation in the rainy season is 1: 0.92. The ratio of rainfall to evaporation in the dry season 1: 8.42 (Table 1). The comparisons between the total rainfall in other parts of the country during the rainy season and the total rainfall day are also generally the same. From the four seasons of rainfall, but also more concentrated in the summer and autumn. Accounting for more than 60% of the annual rainfall. In order to solve