... average rainfall per year is 1785mm, most of the rain falls in August, September and November. The weather is hot, humid and rainy from the beginning of May until the end of October, as a ... May to October, meanwhile cool and dry winter which starts from November to April of the next year. The temperature decreases gradually and the rain increases towards the upper parts of the ... largest family in this area, partly because they are the largest family in the world as well as in Vietnam and partly because of the large number of wild chrysanthenum plants growing in cultivated...