Sound: http://audiojungle.net/item/in-the-city/65517?s_phrase=in%20the%20city&s_rank=3&_ga=1.60907115.633226203.1417113120 Winter is the coldest season of the year in polar and temperate climates, between autumn and spring. Winter is caused by the axis of the Earth in that hemisphere being oriented away from the Sun.