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.
So the rainy season usually starts in November and ends in April, with a little rain in May. But it can start in October, and it can through May. It can also end in March. And some times there will be almost no rain in January, but other months will have rain. Here is the long term average for each month... The 2011 to 2012 rainy season had. Season Total: 15.64 inches of rain and Days of Rain: 59.