Does Wangjiang County, Anqing City belong to a slightly frozen area?

Don't belong. Anhui Province is located in the middle of China, and most areas belong to subtropical monsoon climate. Wangjiang County, as one of the jurisdictions of Anqing City, has a similar climate type with mild and humid climate, hot and humid in summer and relatively cold in winter. Micro-frozen area refers to the area with frequent cold weather and long freezing period, mainly distributed in high latitude areas or high altitude mountainous areas in the north, but the climatic conditions in Wangjiang County do not meet this definition.