= Q Britannica Login Search Britannica . Entertainment & Pop Culture Geography & Travel March 20, 2022 First of Spring Toss that hot beverage, put away OLI" sweaters, and bring out the sandals. Spring officially starts on March 20 with the arrival of the vernal equinox in the Northern Hemisphere: This means longer days, warmer weather; growing plants, and animals_ The Transition from Winter Cold Summer Heat Article Science UnitedMasters Tecord 1C your Fockei Download Day mating