= 0 Britannica Login Search Britannica . Entertainment & Culture Geography & Travel March 20, 2022 First of Spring Toss that hot beverage, put away YOUr sweaters, and Ibring out the sandals. Spring officially starts on March 20 with the arrival of the vernal equinox in the Northern Hemisphere: This means longer days, walmer weather; growing plants, and mating animals. The Transition from Winter Cold Summer Heat Article Science UnitedMasters Arecord latel your Pocket Download Pop Day