Sapporo's winters are harsh and cold, with temperatures often dropping below -20°C in January and February. Spring brings a gradual warming trend, with March temperatures averaging around 3°C and April temperatures reaching up to 19°C. Summer is mild but short-lived, with July being the warmest month at an average of 23°C. Autumn is cool and crisp, with temperatures ranging from -2°C to 27°C in October. In winter, December temperatures are relatively milder than January and February, averaging around -2°C.