February is the second month of the year in the Julian and Gregorian calendars. The month has 28 days in common years or 29 in leap years, with the 29th day being called the leap day. It is the first of five months not to have 31 days (the other four being April, June, September, and November) and the only one to have fewer than 30 days. February is the third and last month of meteorological winter in the Northern Hemisphere. In the Southern Hemisphere, February is the third and last month of meteorological summer (being the seasonal equivalent of what is August in the Northern Hemisphere).
The Roman month Februarius was named after the Latin term februum, which means "purification", via the purification ritual Februa held on February 15 (full moon) in the old lunar Roman calendar. January and February were the last two months to be added to the Roman calendar, since the Romans originally considered winter a monthless period. They were added by Numa Pompilius about 713 BC. February remained the last month of the calendar year until the time of the decemvirs (c. 450 BC), when it became the second month. At certain times February was truncated to 23 or 24 days, and a 27-day intercalary month, Intercalaris, was occasionally inserted immediately after February to realign the year with the seasons.
Having only 28 days in common years, February is the only month of the year that can pass without a single full moon.
The zodiac signs of February are Aquarius (until February 18) and Pisces (February 19 onward).
Its birth flowers are the violet (Viola), the common primrose (Primula vulgaris), and the Iris.
Its birthstone is the amethyst, which symbolizes piety, humility, spiritual wisdom, and sincerity
