One day separates us from the start of the summer meteorology semester

Arab Weather - The four seasons occur mainly due to the rotation of the earth around the sun, and the tilt of the earth's axis during rotation, and each season of the year is characterized by special climatic conditions, as the earth receives during each season a different amount of sunlight and heat, and the hours of night and day differ in days Every season.

Beginning of summer 2021

Today (in the northern hemisphere) we bid farewell to the spring and welcome the summer on (1) June according to the division of seasons in meteorology, which is the unofficial start of the summer season, which was determined by depending on the annual temperature cycle and climate patterns, and it will be the beginning The official summer semester this year is on Monday, June 21, 2021, and the summer will continue until the autumn equinox day on Tuesday, December 21, 2021, when the official start of the summer season depends on the astronomical position of the Earth with respect to the sun.

Why are meteorology classes scheduled for different start dates?

Determining dates for the four seasons in meteorology was due to the difference in length from 89 to 93 days in the duration of the seasons, and it was difficult for experts to compare statistics from year to year, and weather and meteorology remains important in studying the beginnings of the seasons depending on the average temperature Annual events, due to its proximity to what is actually happening on the ground, and this is of great importance to different sectors such as the agricultural sector, the industrial sector, and others.

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The Four Seasons .. How does it occur? Is it witnessed by all parts of the globe?