In the Northern Hemisphere, astronomical spring is defined by the vernal equinox. This is the moment the sun crosses the celestial equator, making day and night nearly equal in length. March 19, 20, or 21. End Date: June 20 or 21 (Summer Solstice). Northern Hemisphere Months: March, April, May, and June.
Astronomical spring covers the tail end of March, all of April and May, and the first three weeks of June. what months are considered spring
The meteorological definition divides the year into four fixed three-month seasons to simplify climate and weather record-keeping. Under this system, spring consists of: In the Northern Hemisphere, astronomical spring is defined
The way we define seasons usually falls into one of two categories: the position of the Earth relative to the sun or the grouping of months based on temperature. Astronomical Spring (The Equinox) End Date: June 20 or 21 (Summer Solstice)