Early this morning, at 5:06 a.m., the astronomical spring began.
Spring comes with mostly sunny weather. A moderate, temporarily strong wind will blow from the west-northwest. The minimum temperatures will be between minus 2° and 3°, in Sofia – around 1°.
After noon, cloudiness will be variable, often significant, but almost without precipitation. Maximum temperatures will be between 10° and 15°, in Sofia – about 11°.
With today's vernal equinox, the light part of the day begins to increase.
The period from the beginning of the astronomical spring to the beginning of the next astronomical spring is equal to one tropical year and is equal to 365.24219 days.
Our modern-day calendar system is based on the so-called "Gregorian Calendar". According to the calendar, regular years of 365 days and leap years of 366 days alternate in a certain way, in which the additional February 29 compensates for the accumulated difference. This is done for convenience but is also the reason why the date of the vernal equinox is different each year - varying between March 20, 21 or 22 for the Northern Hemisphere. The calendar date depends on how many years have passed since the last leap. /BGNES
