Let’s ride the wave.

In Houston, Atlanta, and Dallas, spring is already a month old by the time the equinox rolls around. Daffodils appear in late February. The first lawn mowing happens in early March. But this region knows a cruel trick: the “false spring.” A glorious 75°F week in February will inevitably be followed by a 35°F freeze that kills the azalea buds. Old-timers in Texas won’t plant tomatoes until after the “Easter Freeze” has passed.

Spring arrives early here. States like Florida, Arizona, and Texas often see spring-like temperatures as early as late February . By March, the famous Texas Bluebonnets are usually in full bloom.

In the South, a Dogwood Winter can kill a peach crop. In the Midwest, a Blackberry Winter can drop snow on your just-planted tomatoes. The folklore is eerily accurate: you will put your winter coat away, and within 48 hours, you will be digging it back out. This happens every year , and every year we act surprised.

But neither of these definitions will tell you when to plant your peas.

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.

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.

While the calendar may say it is spring on March 20th, the weather on the ground in the USA tells a vastly different story. The United States is geographically massive, spanning several climate zones. Consequently, "spring weather" arrives at different times in different regions.

Because the Earth's axis is tilted, the astronomical start of spring is determined by the sun's position. On the equinox, the sun passes directly over the Earth's equator, resulting in nearly equal hours of daylight and darkness.

This definition marks the official start of the season, often celebrated by news outlets and cultural traditions. However, for those interested in weather patterns, this date can be misleading.