Spring is the season of new beginnings. Fresh buds bloom, animals awaken and the earth seems to come to life again. Farmers and gardeners plant their seeds and temperatures slowly rise. The timing of these changes varies depending upon location.
What most people call spring relies on the astronomical definition of the word. Spring is generally considered the period between the spring equinox and the summer solstice. Defined by the angle of Earth’s tilt toward the sun, astronomical spring relies on equinoxes and solstices to define it.
Equinoxes are special days during the year when day and night are almost equal. There are two equinoxes, one in the spring and one in the fall. The spring, or vernal, equinox occurs around March 20 in the Northern Hemisphere and around September 22 in the Southern Hemisphere.