Tongliao's climate is characterized by cold winters and warm summers. Spring arrives in late February with temperatures slowly rising from around -10°C to a mild 15-18°C by May, with occasional frosts still present in early March. Summer months see average highs of 22-25°C, while autumn brings a gradual cooling trend from September's 17-20°C to November's 2-5°C. Winters are harsh, with temperatures plummeting to as low as -30°C and averaging around -15°C, lasting until late February.