Here, in the non-tropical Northern Hemisphere, we have come to divide the year into four seasons: the cold of winter, the warming and greening of spring, the warmth or heat of summer, and the cooling and leaf-changing of autumn. However, on freak occasions, weather does not behave in a manner according to its season. In this list, we will discuss some of the rare cases where the weather has taken an unseasonal turn or has acted otherwise unusual.