Is there less sun in winter in Luzhou, Sichuan?

There is little sun in winter in Luzhou City, Sichuan Province. According to relevant public information, the main weather characteristics of Luzhou since winter are: low temperature, more rainfall, less sunshine, frequent cold air, frequent occurrence of low-temperature rain, snow and freezing weather, and long duration. Since the beginning of winter, the average temperature in the city is 6.8-7.6℃, and the average temperature in places above 800 meters above sea level is 3.8- 1.0℃, which is lower than normal 1.3-2.6℃ and 2. 1-3.6℃ lower than last year.