Summer is the warmest season of the year, typically occurring between June and September in the Northern Hemisphere. During this time, days are longer, and temperatures rise, often leading to outdoor activities like swimming, picnics, and vacations. Plants and flowers bloom, creating vibrant landscapes, and many animals are more active. Winter, on the other hand, is the coldest season, usually lasting from December to February in the Northern Hemisphere. This season is characterized by shorter days and lower temperatures, often resulting in snow and ice in many regions. People engage in winter sports like skiing and ice skating, and many celebrate holidays such as Christmas and Hanukkah.