The season change dates are based on the spring and fall equinoxes as well as the summer and winter solstices. Each season lasts approximately 3 months and corresponds to a period of the year which has a relative constancy in terms of temperature and climate. The polar vortex isn’t a storm—it’s a large swirling pool of very cold Arctic air that usually stays near the North Pole in winter. If the polar vortex shifts south, it could send colder-than-average air from Canada farther into the United States.
Other annual plants require winter cold to complete their life cycle; this is known as vernalization. The appearance of flowering plants like the crocus can mark the change from ecological winter to the prevernal season as early as late January in mild temperate climates. The hibernal season coincides with the main period of biological dormancy each year whose dates vary according to local and regional climates in temperate zones of the Earth. It is one of six seasons recognized by most ecologists who customarily use the term hibernal for this period of the year (the other ecological seasons being prevernal, vernal, estival, serotinal, and autumnal). In another astronomical reckoning, winter begins at the winter solstice and ends at the March equinox. Seasonal lag means that the coldest period normally follows the solstice by a few weeks.
The moment of winter solstice is when the Sun’s elevation with respect to the North or South Pole is at its most negative value; that is, the Sun is at its farthest below the horizon as measured from the pole. It occurs after autumn and before spring, when the hemisphere is oriented away from the Sun as a result of the tilt of Earth’s axis.
- In the Northern Hemisphere, the December solstice is the winter solstice.
- The hibernal season coincides with the main period of biological dormancy each year whose dates vary according to local and regional climates in temperate zones of the Earth.
- In the “astronomical” reckoning, the timing of “winter” is based on astronomical fixed points (i.e., based solely on the position of the Earth in its orbit around the Sun), regardless of weather conditions.
- Few plants bloom in the winter, one exception being the flowering plum, which flowers in time for Chinese New Year.
- In another astronomical reckoning, winter begins at the winter solstice and ends at the March equinox.
- The process by which plants become acclimated to cold weather is called hardening.
Equinoxes
The day after the winter solstice, the Sun’s path begins to advance northward again, eventually reaching its most northerly point on the day of the summer solstice. For those of us in the Northern Hemisphere, this means that the Sun’s path is as low in the sky as it can get—even at high noon. Another way to think of this is that on the day of the solstice, the Sun’s path reaches its most southerly point in the sky. During the summer, the Sun arcs high in the sky, but during the winter, it arcs lower, closer to the horizon.
Southern Hemisphere
- We wish our entire Almanac community a beautiful, cozy, magical, and safe winter season!
- The day on which this occurs has the shortest day and the longest night, with day length increasing and night length decreasing as the season progresses after the solstice.
- In one astronomical reckoning, the winter solstice is the middle of winter; being the day of the year that has fewest hours of daylight.
- During this days, people wear special clothes, use fruits and vegetables as decorations for their homes and also light special candles.
- In the Julian calendar used in the ancient Roman world, winter began on 10 November, its midpoint was the winter solstice on 25 December, and winter ended on 6 February.
In the “astronomical” reckoning, the timing of “winter” is based on astronomical fixed points (i.e., based solely on the position of the Earth in its orbit around the Sun), regardless of weather conditions. In the Julian calendar used in the ancient Roman world, winter began on 10 November, its midpoint was the winter solstice on 25 December, and winter ended on 6 February. Winter is often defined by meteorologists to be the three calendar months with the lowest average temperatures. Different cultures define different dates as the start of winter, and some use a definition based on weather.
Is the Winter Solstice really the start of winter?
At The Old Farmer’s Almanac, we’ve been forecasting the weather since the days of George Washington—over 234 years ago—so we know a thing or two about making predictions. In colder regions, winter often means shoveling, snow blowing, dealing with bad roads, and challenging temperatures. Learn more about the Celtic calendar. Meteorological winter starts on December 1 and includes December, January, and February. Thus, meteorologists break the seasons down into groupings of three months. Because of these factors, it’s impossible to point to the same date year after year and call it the coldest day.
In Chinese astronomy and other East Asian calendars, winter is taken to commence on or around 7 November, on Lìdōng, and end with the arrival of spring on 3 or 4 February, on Lìchūn. In Celtic nations, winter began on 1 November and the time around the winter solstice was seen as the middle of winter. Likewise, in Christian Anglo-Saxon calendars, winter began on 7 November, its midpoint was the solstice or Midwinter on 25 December, and winter ended on 6 February. In this region, snow occurs every year in elevated regions such as the Andes, the Great Dividing Range in Australia, the mountains of New Zealand, and in the southerly Patagonia region of South Argentina. The Swedish Meteorological Institute (SMHI) defines thermal winter as when the daily mean temperatures are below 0 °C (32 °F) for five consecutive days.
Mostly Mild Winter — Colder, Snowier Spots Ahead!
Most of plants and animals are having their hibernation period, so winter is not full of bright colors, but who says that white, snowy and a bit magical winter is not cool? Nature in the winter season is sleeping, because of low temperatures, frost in the air and snowing weather. Ecological reckoning of winter differs from calendar-based by avoiding the use of fixed dates.
Spend some time enjoying the crisp air. Of course as late Winter goes on, I do start to wish winwinter casino for the warmth of Spring, which I love because of all of the new growth in the garden. I was born on December 22nd, and I remember looking at the calendar to see if it landed on the solstice. The idea that winter in some way starts at the solstice makes no sense at all. We wish our entire Almanac community a beautiful, cozy, magical, and safe winter season!
Plants
The temperatures are state-wide averages calculated from temperatures recorded during the months of December, January and February. Blizzards occur when strong wind causes blowing snow and whiteout conditions, making roads impassable. Season dates for 2028 SEASONS 2028 Start dates End dates Spring 2028 Sunday, March 19, 2028 Tuesday, June 20, 2028 Summer 2028 Tuesday, June 20, 2028 Friday, September 22, 2028 Fall 2028 Friday, September 22, 2028 Thursday, December 21, 2028 Winter 2028 Thursday, December 21, 2028 Tuesday, March 20, 2029 Each season of 2028 lasts for about 3 months. Season dates for 2026 SEASONS 2026 Start dates End dates Spring 2026 Friday, March 20, 2026 Sunday, June 21, 2026 Summer 2026 Sunday, June 21, 2026 Tuesday, September 22, 2026 Fall 2026 Tuesday, September 22, 2026 Monday, December 21, 2026 Winter 2026 Monday, December 21, 2026 Saturday, March 20, 2027 Each season of 2026 lasts for about 3 months. For 235 years, The Old Farmer’s Almanac has mixed practical advice with the unexpected. The Atlantic’s warm pattern is expected to continue, while the Pacific’s cool pattern should weaken.
