Hidaka's winters are cool and occasionally frigid, with temperatures often below freezing in January and December. Spring brings a steady warming trend, with temperatures rising gradually throughout March, April, and May. Summer is warm to hot, with July and August being the warmest months, but even then, nighttime temperatures can still be mild. Autumn is characterized by a return to cooler temperatures, with September and October experiencing a more moderate climate than winter, before dropping back down again in November and December.