Abstract:IN the spring of 2026 (March to May), the temperature in most part of China was higher than normal, with a national mean temperature of 12.0°C, ranking as the fourth warmest since 1961. The national average precipitation was 166.3 mm, 15.8% above the normal. Spatially, precipitation in central and eastern China presented two main rainfall belts in the North and South: The northern rainfall belt is mainly located from the southern part of North China to the Huanghuai region, while the southern rainfall belt is located from the central-eastern part of Southwest China to the western part of Jiangnan. At 500hPa geopotential height field over the middle and high latitudes of Eurasia exhibited a “two ridges and one trough” pattern. Positive height anomalies prevail over the region from the Ural Mountains to Lake Balkhash and over Northeast Asia, whereas negative height anomalies were center over Lake Baikal and the central Siberia area to its north, a circulation pattern that facilitating the southward intrusion of cold air along the central and western paths into China. In the lower- tropospheric wind field, Northeast Asia was dominated by an anomalous anticyclonic circulation, which favors the transport of warm and moist water vapor from the western North Pacific to northern China. Combined with the southward-moving cold air, this led to significantly above-normal spring precipitation over areas from the southern part of North China to the Huanghuai region. The positive phase of the spring North Atlantic Tripole (NAT) server as an important external forcing signal responsible for the formation of the northern rainy belt over central and eastern China in spring.