What are the characteristics of winter in Guangdong?
In winter (12 ~ February), northeast wind or north wind prevails in Guangdong. After a long journey, the dry and cold air from the north was warmed and wet, and its intensity was greatly weakened. In Guangdong, the wind speed has become smaller and the temperature is higher, so the winter is warmer. However, when the cold wave comes, frost weather will also occur in individual years. Winter is the dry season in Guangzhou, with less precipitation, sunny weather and plenty of sunshine. The month of 65438+ 10 is the most Leng Yue, the monthly average temperature is 9 ~ 16℃, and the temperature difference between north and south is above 7℃. The extreme minimum temperature was recorded as-7.3℃ (195565438+10/2, Meixian). The extreme minimum temperature in Guangzhou is 0℃ for many years, and the general situation of climate in Guangdong Province appears in1February, 957 1 1. In Guangzhou, although winter is influenced by the cold air in the south, the average temperature in 65438+ 10 is still 13.5℃ due to the low latitude, so there is no winter in the climate sense.
From north to south, the annual average sunshine hours in Guangdong Province have increased from less than 1500 hours to more than 2,300 hours, the annual total solar radiation is between 4,200 and 5,400 MJ/m2, and the annual average temperature is about 1.9℃~ 24℃. The average sunshine hours in the province 1745.8 hours, and the annual average temperature is 22.3℃. The average temperature in June 5438+ 10 is about 16℃ ~ 19℃, and the average temperature in July is about 28℃ ~ 29℃.
Guangdong is abundant in rainfall, and the spatial distribution of rainfall is basically high in the south and low in the north. Affected by topography, there are three rainy centers on the windward slope of the mountain, which are Enping, Haifeng and Qingyuan, which are conducive to the formation of precipitation due to water vapor uplift, with an average annual precipitation of more than 2200 mm. The average annual precipitation is less than 1400 mm in Luoding basin and Xingmei basin on leeward slope, as well as in Leizhou Peninsula and Chaoshan plain with little rain. ..
The distribution of precipitation is uneven during the year, and the precipitation in flood season from April to September accounts for more than 80% of the whole year. The interannual variation is also great, and the precipitation in rainy years is more than twice that in dry years.
Floods and droughts often occur, and the impact of typhoons is more frequent. Low temperature and rainy weather in spring, cold dew wind in autumn and cold wave frost from late autumn to early spring are also frequent disastrous weather in Guangdong.