This follows the Earth's orbit around the sun. It begins at the Spring (Vernal) Equinox , typically around March 20 or 21 , and ends at the Summer Solstice on June 20 or 21 . Month-by-Month Breakdown
In the United States, the spring season is officially defined by the astronomical calendar and is supported by meteorological standards.
Spring in the United States is a season of dramatic transformation, defined by blooming flora, warming temperatures, and a general "awakening" of the outdoors. Depending on whether you follow the calendar or the climate, the months included can vary slightly.
There are two primary ways to define the spring season in the USA: spring season months in usa
If you need the official calendar answer for the USA, the spring months are March, April, and May (meteorological spring) or roughly late March to late June (astronomical spring).
As spring unfolds, the U.S. landscape undergoes a dramatic transformation: Meteorological Versus Astronomical Seasons | News
This is the "official" calendar spring, governed by Earth's tilt and orbit. It begins at the Vernal Equinox , when the sun passes directly over the equator, resulting in nearly equal daylight and darkness globally. Because Earth's orbit is roughly 365.24 days, this date varies slightly each year. A Month-by-Month Breakdown of the Season This follows the Earth's orbit around the sun
For record-keeping and climate analysis, meteorologists and climatologists define spring as the same three full calendar months each year:
As the last wisps of winter's chill dissipated, the United States welcomed the arrival of spring with open arms. The season of renewal and growth typically began in March and lasted through May, bringing with it a vibrant display of color and life.
Meteorologists and climatologists divide the year into four three-month quarters based on the annual temperature cycle. By treating March, April, and May as spring, scientists can more easily compare seasonal statistics from year to year. Spring in the United States is a season
While the calendar says spring runs March–May, the feeling of spring varies dramatically across the country due to the USA's large size and varied climates:
April was a time of transition, as winter's lingering chill gave way to the warmth of spring. The month was often marked by showers, but the rain only seemed to make the flowers bloom more vibrantly. The azaleas, dogwoods, and cherry blossoms burst forth in a riot of color, painting the countryside with hues of pink, white, and purple.
The start of spring in the U.S. depends on the system being used: