Oizumi, Japan experiences a temperate climate with distinct seasonal changes. Winters are cold and snowy, with temperatures ranging from -7°C to 18°C in January and -5°C to 22°C in February, averaging around freezing point. As spring arrives in March, temperatures gradually warm up to an average of 11°C, reaching as high as 24°C. Summer months, particularly July and August, are hot with temperatures often exceeding 30°C, peaking at 36°C and 39°C respectively. Autumn brings a slight cooling trend, with temperatures ranging from 5°C to 22°C in November, before the cold winter sets in again.