Winters in Noshiromachi are cold, with temperatures often dropping below freezing and averaging around 1°C in January. Spring brings gradual warming, with March temperatures rising to a high of 17°C on some days, while April and May see consistent highs above 20°C. Summers are warm, with July being the hottest month, but even then temperatures rarely exceed 35°C. Autumn is mild, with September seeing temperatures similar to those in spring, before cooling off again in November.