Winters in Hirosaki are harsh, with temperatures often dropping below freezing and averaging around -2°C in January. Spring arrives in March, bringing mild temperatures that range from -8°C to 19°C, but can still be quite chilly. By May, the mercury rises, with average highs reaching 14°C, marking the beginning of warm summers. July is typically the hottest month, with temperatures frequently soaring above 30°C, while August's averages are slightly lower. Autumn brings a return to milder conditions, with September and October averaging around 19°C and 13°C respectively.