From an astronomical perspective, the solstice is the official "start" of winter, but ironically, because the oceans and land retain heat, the coldest weather usually follows in the months of January and February.
Beyond the scientific definitions, many Americans observe winter’s start through phenology—the study of cyclic and seasonal natural phenomena. when the winter starts in usa
| Region | Typical First Freeze / Snow | Perceived Start of Winter | | :--- | :--- | :--- | | | Late October – November | Mid-November | | Midwest (e.g., Minnesota, Michigan) | Early – Mid October | Early November | | South (e.g., Texas, Florida) | December – January (rare) | Late December (if at all) | | Rocky Mountains / High Plains | September – October | Late October | | Pacific Northwest | November (lowlands), Oct (mountains) | Late November | | Southwest Deserts (e.g., Phoenix) | Rarely below freezing | Does not meaningfully occur | From an astronomical perspective, the solstice is the
In 2026, astronomical winter officially begins on Monday, December 21, at 3:50 P.M. EST . 2. The Meteorologists' Start EST . 2. The Meteorologists' Start