未来十天冷空气频繁，全国大部地区降水较弱

Group 1 - The expected cumulative precipitation from December 20 to 29 in regions such as Xinjiang, Gansu, Shaanxi, Inner Mongolia, Northeast China, Shandong, Jianghan, northern and western Jiangnan, South China, and eastern Southwest China is forecasted to be between 5 to 20 millimeters, with some areas in southwestern Xinjiang, southern Sichuan, Chongqing, eastern Guizhou, and Taiwan receiving 25 to 40 millimeters, and localized areas exceeding 50 millimeters [1] - The cumulative precipitation in Northeast and eastern Southwest regions is significantly above the normal levels for this time of year, with increases of 40% to 80%, and some areas experiencing more than double the usual amounts, while most other regions in the country are seeing significantly lower precipitation [2] - In terms of temperature, most regions in the country are experiencing average temperatures that are 1 to 3 degrees Celsius higher than the same period in previous years, with some areas in northern Xinjiang and the Tibetan Plateau seeing temperature increases of over 4 degrees Celsius, except for western Yunnan, northeastern Inner Mongolia, and the Northeast region where temperatures are lower than normal [4]