World's largest hot desert. Located in north Africa and covers over 3,500,000 square miles (9,000,000 sq km) or roughly 10% of the continent. Mean temperature over 30 degrees C. Variations may also be huge, from over 50 degrees C during the day, to temperatures below 0 at night in summer.
Fall begins (Northern H.) History. Fall begins in the Northern Hemisphere when the Sun is perpendicular to the equator. This day has equal hours of day and night. The first day of Fall is also called the Autumnal Equinox. In many areas it coincides with harvests. The first day of Fall happens between each year between September 22 and 24.
Fall Countdown Calendar. Fall / Autumn (Northern Hemisphere) 2016 begins on Thursday, September 22nd 2016, 9:22pm and ends on Tuesday, December 20 2016, 5:45pm and will come through. Welcome Fall. Using Fall countdown timer you can easily find out how many days, hours, minutes and seconds will come Fall. The timer is updated every second and works on any devices.