Spring officially begins today (March 20) with the vernal equinox, bringing longer days and warmer temperatures to the Northern Hemisphere.

An equinox happens when the sun's rays are directly over the equator ... The summer solstice, the longest day of the year, falls on Friday, June 20, 2025, while the winter solstice, the shortest ...

They occur between the summer and winter solstices marking the point the Sun crosses the equator's path and becomes positioned exactly above the equator between the Northern and Southern ...