Sishui County belongs to the temperate continental semi-humid monsoon climate zone, with four distinct seasons, suitable cold and heat, synchronized light and temperature, and rain and heat in the same season. Specifically, the climate characteristics of this region are as follows:
* Dry and windy in spring. From March to May, Sishui County is controlled by the polar continental air mass. The temperature rises rapidly and changes drastically. There are more southwesterly winds, dryness and less rain, often resulting in spring drought.
* Summer is hot and rainy. From June to August, affected by the maritime summer monsoon and subtropical high pressure, the area is hot and humid, hot and rainy, with occasional droughts and disastrous weather such as thunderstorms, strong winds, short-term heavy precipitation, heavy rain, hail, and typhoons. .
* The autumn weather is sunny and crisp. From September to November, with the re-establishment of the continental high pressure in the north, the vertical structure of the atmosphere stabilizes, resulting in high and cool autumn weather. Precipitation decreases significantly, accompanied by autumn drought. In some years, autumn floods occur, and the temperature drops sharply in late autumn.
* Dry winter with little snow. From December to February, Sishui County is controlled by winter monsoons, resulting in dry and cold weather with scarce rain and snow.
In addition, the annual average temperature in Sishui County is 15.2℃, which is 1.2℃ higher than the historical average of 14.0℃. The annual extreme minimum temperature was -17.2℃, which occurred on January 7, 0.5℃ lower than the previous extreme minimum temperature of -16.7℃. The annual extreme maximum temperature was 37.2℃, which occurred on June 7, 4.1℃ lower than the previous extreme maximum temperature of 41.3℃. The total precipitation for the year was 928.1 mm, which was 210.8 mm higher than the historical average of 717.3 mm. The total number of sunshine hours throughout the year was 2127.2 hours, 145.9 hours less than the historical average of 2273.1 hours.
To sum up, the climate in Sishui County is characterized by a temperate continental semi-humid monsoon climate, with four distinct seasons, each with its own unique weather characteristics.