In spring, Yongcheng experiences mild temperatures with moderate sunshine, gradually warming up from the chilly winter months. By April, the average high temperature reaches around 22°C, marking a significant increase from the previous month. May brings warm days with highs often reaching 26-28°C, while nights still retain some chill, averaging around 18°C. Summer arrives in June, with temperatures soaring to as high as 33°C and lows ranging from 23-25°C. As summer progresses, July and August become increasingly hot and humid, with temperatures frequently exceeding 35°C.