Winters in Kitahiroshima are harsh, with temperatures often plummeting below -20°C and averaging around -4°C in February. Spring is a gradual warming period, with temperatures rising steadily from March's average of 3°C to April's average of 7°C. Summers are warm and humid, with July being the hottest month, averaging 23°C but occasionally reaching up to 35°C. Autumn brings a return to cooler temperatures, with October averaging around 11°C before dropping again in November.