Spring is one of the four seasons, which typically starts in March and ends in May in the northern hemisphere. During spring, the weather becomes warmer, and the days become longer. Flowers start to bloom, and trees grow new leaves. It is a time of renewal and growth, and many animals come out of hibernation. Spring is also associated with Easter and other springtime celebrations. People often enjoy outdoor activities such as hiking, picnicking, and gardening during this season.