Winters in Changchong are cool, with temperatures ranging from near-freezing to mild. January is the coldest month, with average temperatures around 5°C, while December and February see similar conditions. As spring approaches, temperatures gradually warm up, reaching averages of 13°C by March and 15°C by April. Summer months bring warmth, with June, July, and August averaging highs above 23°C, but temperatures can still dip into the mid-teens at night. Autumn brings a return to cooler conditions, similar to those seen in winter.