Washington, D.C.’s famous cherry blossoms peak around March 20–25. This is the first time the Northeast feels the shift. In Portland and Seattle, March is less about warmth and more about light . The rain persists, but the sun rises earlier and sets later. The moss glows an electric green. Spring here isn’t a temperature change; it’s a mood change.
The equinox is a moment on a globe. But spring is a feeling in a body. It arrives when the light changes, when the wind smells of wet earth, and when you finally— finally —believe that winter is done.
Climatologists and utility companies got tired of the equinox’s sloppiness. For the sake of consistent record-keeping, they simply declared spring as March 1 to May 31. Why? Because annual temperature cycles are more predictable when you group full months. This system allows us to compare “spring 2024” to “spring 1884” without the equinox moving around. It’s less romantic, but if you work in agriculture, energy, or insurance, this is your spring. when is spring season in usa
Ask ten different Americans when spring begins, and you might get ten different answers.
The truth is that spring in the United States is less a date on a calendar and more a traveling wave. It doesn’t arrive everywhere at once. It is a 2,000-mile-long parade that starts in the South and crawls north at about the speed a dandelion grows—roughly 15 to 20 miles per day. Washington, D
This is where calendars go to die. Chicago, New York, and Boston experience “spring” as a series of battles. One day it’s 68°F and people are eating lunch outdoors. The next day it’s 34°F with sleet. The phrase “April showers” is a euphemism for “relentless, freezing disappointment.” True spring—defined as sustained temperatures above 50°F—doesn’t arrive in New York until mid-April. In Minneapolis? Not until late April. In Denver? You’ll get a blizzard on May 5. This is also the season of “mud season” in Vermont and New Hampshire—a two-week period when dirt roads become impassable and hiking trails are closed to prevent erosion.
The meteorologist will point to March 1. The astronomer will insist on the vernal equinox (March 19–21). The farmer in Vermont will tell you it starts when the sap runs in the maples. The parent in Phoenix will say it started in February—the day they packed away the winter coats for good. And the resident of Buffalo, New York, will sadly note that “spring” is merely the three weeks between the last snowstorm and the start of summer humidity. The rain persists, but the sun rises earlier and sets later
This is the one most schoolchildren learn. It begins on the vernal equinox, when the sun’s rays shine directly on the equator, granting nearly equal day and night. In 2024, that was March 19. In 2025, it will be March 20. This definition is poetic—a moment of cosmic balance. But it’s also almost useless for daily life. The weather on March 20 in Minneapolis feels nothing like the weather on March 20 in Atlanta.