How many quarters are there in a year?

Spring begins in early spring (February 2-5) and ends in long summer (May 5-7). In Europe and America, spring begins at the vernal equinox in China and ends at the summer solstice. In Ireland, February to April is designated as spring.

Summer is a season of hot climate and possible water shortage. In addition, since most students in the world spend their summer holidays in summer, it is also a very strong tourist season. In the north temperate zone, the meteorological summer is from May 2 1 day (Xiaoman) to August 22 (midsummer); In the south temperate zone, the meteorological summer is165438+1October 2 1 (light snow in the northern hemisphere) to February 18 of the following year (rain in the northern hemisphere).

Meteorologically, autumn in the north temperate zone is from August 23rd (summer) to165438+1October 20th (light snow); Autumn in the south temperate zone is from February 19 (rain in the northern hemisphere) to May 2 1 (xiaoman in the northern hemisphere). Astronomically speaking, it was from February to March in 65438. China used to refer to the three months from beginning of winter to beginning of spring, and also referred to the "October, November (winter) and December (wax) months" of the lunar calendar.

According to the meteorological significance, the winters in temperate and cold regions in the southern hemisphere are in June, July and August (or May 2 1 ~ August 22 according to the constellation standard), and the winters are in 12,1and February (or 1658 according to the constellation standard).