The March equinox occurs on Saturday, March 20, 2021, at 5:37 a.m. EDT. This date marks the beginning of the spring season in the Northern Hemisphere. The March equinox marks the beginning of fall in the Southern Hemisphere, whereas the September equinox marks the beginning of spring. The next time that the vernal equinox will occur on or before March 20 is 2041.
The solar eclipse on March 20, 2021, will be a total lunar eclipse. It will be the first total lunar eclipse of the 21st century and the second of three total lunar eclipses in 2021. The last total lunar eclipse of the millennium was on January 1, 2001.
Lunar eclipses are visible on half of Earth. Where it is night, the eclipse will be visible as a red-colored Moon. Where it is the day, the eclipse won't be visible. During a total lunar eclipse, the Earth's atmosphere refracts light from the Sun that reaches and enters its orbit to create a reddish hue on Earth's moon. The color varies depending on how much dust or clouds are present in Earth's atmosphere at the time of the eclipse.
Where it is night when the eclipse starts, the eclipse will be completely covered by the Moon within a few minutes. Where it is not night, such as where it is daytime when the eclipse starts, the eclipse will not be visible until it has ended.
What Is the Date of the First Day of Spring? No other day can be considered the first day of spring.
The transition from winter to spring is a matter of geography and astronomy rather than meteorology. In the northern hemisphere, the days are getting longer as the sun rises later in the morning and sets later in the evening. As the days get warmer, plants and animals react by starting to grow again after being dormant for months during winter.
In most parts of the United States, spring has sprung as of late. The current national weather service forecast for Philadelphia, Pennsylvania is predicting a 50% chance of precipitation between Wednesday, March 18, and Friday, March 20. So if you're around Phila during that time, prepare yourself for some rain drops!
Elsewhere in North America, winter is still holding strong. The latest national weather service forecast for Toronto, Ontario is predicting a 75% chance of precipitation between Thursday, March 19, and Sunday, March 22. So if you're in Torontolanding between those dates, expect snow showers!
And finally, over in Australia, it's summer everywhere else.
Spring officially begins on March 20, 2018, at 12:15 p.m. Summer begins on June 21, 2018, at 6:07 a.m., with the Summer Solstice. Autumn begins on September 22, 2018, at 9:54 p.m., with the Autumnal Equinox. The winter season starts on December 21, 2018, at 3:17 p.m., with the Winter Solstice.
A solar term that refers to the period from one solstice to the next is called an astronomical season. The four seasons described by most cultures around the world are determined by observations of physical changes within their natural environment. However, scientists use information about Earth's orbit around the Sun to define five equal periods called "auroras" (the absence of sunlight). These periods are called the Spring Equinox, the Summer Solstice, the Fall Equinox, the Winter Solstice, and the Spring Equinox.
The terms "spring" and "summer" are relative to where you live on Earth. If you live in the northern hemisphere, then spring begins when there is enough daylight for plants to grow again after the cold of winter, and summer ends when autumn colors change the landscape back to brown and yellow. In the southern hemisphere, spring begins when it's hot enough for flowers to bloom, and summer ends when winter storms come again.
The March equinox in 2021 occurs on March 20 at 09:37 UTC (on March 20 at 4:37 a.m. CDT; translate to your time zone). The sun nearly rises and sets due east and west at the equinox. So, the north star still points directly east or west during the equinox.
The March equinox marks the beginning of spring in most parts of the world. All around us things are becoming green again after being white with snow during the winter months. Flowers such as daffodils and tulips begin to appear under the snow. Trees spread their new leaves out into the sunlight. Animals born during the winter grow larger than those born in summer. This is because they need more energy to build muscles and resist cold temperatures.
Equinoxes occur when the Earth's axis is tilted at an exact angle to the orbit of the moon. At other times, the earth is either facing the moon or away from it, so there is no full moon or new moon. These periods are called "lunar eclipses." During a total lunar eclipse, the entire moon is obscured by the shadow of the earth, causing it to darken gradually over about an hour. The eclipse can only be seen from certain areas, including all of North America, South America, Africa, and Australia. A partial lunar eclipse will be visible from everywhere else.
The autumnal equinox, also known as the September equinox or fall equinox, will occur on Tuesday, September 22, 2020. In the Northern Hemisphere, fall begins, and in the Southern Hemisphere, spring begins. Autumn has captured us in our summer attire. The leaves are turning color, and winter is on its way.
Equinoxes happen at the same time every year at approximately 12:00 UTC on either 21 or 22 September. During a single day, the sun is directly over the equator, meaning that it rises exactly north of the equator and sets just south of the equator. At the equinox, the center of Earth is aligned with the center of the Sun's orbit, so on both days the earth is exposed to the full force of sunlight for 24 hours.
In the Northern Hemisphere, the equinox marks the beginning of fall and the end of summer. In the Southern Hemisphere, it marks the start of spring and the end of winter. The autumnal equinox occurs when the sun is around 15 degrees above the horizon for half of the planet and 75 degrees for the other half. Although the equinox only happens once every year, people have been observing it for many centuries using various methods. For example, Native Americans would watch which way the wind blew from their lands, while Europeans would track when night fell for the same reason.
The arrival of the vernal (spring) equinox will mark the first day of spring on Saturday, March 20, 2021, at 5:37 a.m. EDT for those of us in the Northern Hemisphere. The autumnal equinox will fall on Thursday, September 25, 2021, at 5:44 a.m.
The vernal equinox occurs when the Earth's axis is balanced between the effects of the sun's rays on one side and wind on the other. As a result, we see equal amounts of daylight and darkness. This event has been happening every year since the earth stopped moving around the sun!
The vernal equinox marks the beginning of spring in the northern hemisphere. Our days are getting longer, but our nights are still quite short. However, it may not feel like spring yet if you're used to more intense colors in nature and warmer temperatures. Although flowers are starting to appear, there are no signs of green growth outside of plants that are frozen in time for now.
During this period, the daytime temperature in most areas of the country will be near or above average, while night-time temperatures will be below average. Rainfall will be spread evenly across the United States.