Start __hot__ | When Does Winter

This system uses fixed dates, making it much easier for scientists to compare weather statistics and climate data year-over-year.

If you are a weather forecaster, statistician, or just someone who likes simplicity, you use meteorological winter. Since astronomical dates jump around year to year, it makes comparing climate data very difficult.

Meteorologists and climatologists define seasons by the calendar months and annual temperature cycles. when does winter start

Winter is comprised of the three coldest months of the year: December, January, and February.

As the leaves fall and the air gets crisp, the debate begins: Is winter officially here? If you ask someone in Florida, winter starts when the temperature dips below 60°F. If you ask a meteorologist, they are looking at the calendar. And if you ask an astronomer, they are watching the sky. This system uses fixed dates, making it much

Here is the breakdown of both, plus why the shortest day of the year isn't necessarily the coldest.

Of course, neither of these dates always match what you feel outside. If you ask someone in Florida, winter starts

The exact start date of winter depends on whether you use the or the meteorological calendar , as well as your geographic hemisphere . In the Northern Hemisphere, winter begins on either December 1 or December 21 or 22 . In the Southern Hemisphere, winter begins on either June 1 or June 20 or 21 .