Ono, Japan's climate is characterized by a gradual warming trend from winter to summer. January and February are the coldest months, with temperatures ranging from -5°C to 20°C, averaging around 6-8°C. As spring approaches, March sees temperatures rise to an average of 11°C, while April brings warmer days with averages reaching 15°C. Summer is hot and humid, with July and August temperatures soaring up to 35°C and 37°C respectively, although the averages remain relatively consistent at around 27°C. Autumn brings a moderate cooling, with September and October averages ranging from 24-20°C before the temperatures drop again in November and December.