Yuanmou climate characteristics

It belongs to the south subtropical dry-hot monsoon climate, with an annual average temperature of 2 1.9 degrees, an extreme maximum temperature of 42 degrees and a minimum temperature of -0. 1 degree. The annual sunshine hours are 2670.4 hours, the annual average sunshine hours are 7.3 hours/day, and the sunshine percentage is 60%. The frost-free period is 305~3 14 days in mountainous area, 302~33 1 day in mid-level area, and the average frost day in dam area is 2 days. The annual evaporation is 6.4 times that of precipitation. The annual average relative humidity is 53%. It belongs to the southeast wind, with an annual average wind speed of 2.5m/ s and an annual average rainfall of 6 13.8mm, with a maximum of 906.7mm( 1966) and a minimum of 287.4mm( 1960). The rainy season generally begins on May 29th (the earliest is May 6th) and ends on June 65438+ 10/0/(the latest is June 29th). The rainfall is the highest in July, with an average of137.8 mm; 1 month is the least, which is 3. 1 mm, with little spring rain in winter, less than 60.6mm in March-May and less than 20mm in12-February. Because it is divided into mountainous areas, semi-mountainous areas and dam areas, it has formed a three-dimensional climate: the average annual temperature in riverside villages located in the Jinsha River Valley reaches 23.438 0 degrees; The average annual temperature in Huatong's hometown in the mountainous area is only 13.4 degrees; Nengyu Town, located at Majieba, has an annual rainfall of 625.5 mm, and its coordinate is 10 km away. Liangshan Township, located in the mountainous area, has an annual rainfall of 883.2 mm. ..