Kaiyuan's spring is mild and pleasant, with temperatures gradually warming up from 10°C in February to a comfortable average of 22°C by March. The season brings an increase in precipitation, with April showers contributing to the city's lush greenery. As summer approaches, June marks the beginning of the hot and humid season, with temperatures often reaching as high as 32°C. Autumn is generally mild, with October averaging around 18°C, a welcome respite from the sweltering heat of summer. Winter, though chilly, is relatively dry, with January's average temperature ranging from -2°C to 3°C, allowing for crisp and clear days.