Spring does not begin on March 21, but why? – Planet.fr

If you tend to think that spring always starts on March 21 equinox day, yet it happens that this is not the case. This is the case for example this year, when spring begins a day earlier, on March 20, specifically in 5h30m and 12 seconds.

But why? “This is the exact moment when the sun crosses the earth’s equator. The daily illumination then becoming longer in the northern hemisphere than in the south, which marks the end of winter and the coming in the spring in our hemisphere, “says Le Figaro.

The spring from early March?

Other reasons also explain this change of date. “We must add to this the quirks of our calendar which provides, depending on the year, 365 or 366 days. It is indeed fit the astronomical year, which lasts exactly 365.2422 days,” notes Europe1.fr .

And according to Le Figaro , meteorologists consider their sides as spring begins even much earlier than 21 March. These are based affect the maximum average temperature of the summer, which would take place in mid-July, which marks the middle of the summer season. The seasons are three months of summer begin as early June, which therefore means that the spring would start in early March.

video on the same topic: Spring is coming, it is time to resume gardening