Winters in Brighouse are cold and unpredictable, with temperatures often dropping below freezing point and averaging around 2-4°C. Spring brings a slow warming trend, with March marking the beginning of mild days and warmer nights, reaching averages of 6°C by the end. Summer is warm and pleasant, with July being the hottest month on average at 16°C, but still experiencing occasional cooler spells. Autumn is generally mild, with temperatures remaining around 10-12°C until November, when they start to drop again, returning to winter's chilliness by December.