above . Average high temperatures remain above during the coldest month of the year while average low temperatures remain above . Summers are very prolonged and extremely hot with blazing sunshine although desert heat is dry. Winters are brief and pleasantly mild, though nights may be cool at times. The climate of Aswan is extremely dry year-round, with less than of average annual precipitation. The desert city is one of the driest ones in the world, and rainfall doesn't occur every year, as of early 2001, the last rain there was seven years earlier. When heavy precipitation does occur, as in a November 2021 rain and hail storm, flash flooding can drive scorpions from their lairs to deadly effects. Aswan is one of the least humid cities on the planet, with an average relative humidity of only 26%, with a maximum mean of 42% during winter and a minimum mean of 16% during summer. The weather of Aswan is extremely clear, bright and sunny year-round, in all seasons, with a low seasonal variation, with almost 4,000 hours of annual sunshine, very close to the maximum theoretical sunshine duration. Aswan is one of the sunniest places on Earth. The highest record temperature was on July 4, 1918, and the lowest record temperature was on January 6, 1989. Infrastructure Education In 2012, the Aswan University was inaugurated, which is headquartered in the city. Aswan is also home to the Aswan Higher Institute of Social Work, which was established in 1975. Transport The city is crossed by the Cape to Cairo Road, which connects it to Luxor and Cairo to the north, and Abu Simbel and Wadi Halfa to the south. Also important is the Aswan-Berenice highway, which connects with the ports of the Red Sea. Aswan is linked to Cairo by the Cape to Cairo Railway, which also connects it with Wadi Halfa. The railway is incomplete towards the south. Other key transport infrastructures are the Port of Aswan, the largest river port in the region, and Aswan International Airport. International relations Twin towns/Sister cities Aswan is twinned with: Sonoma, California, United States Gallery See also References External links Ancient Aswan City Governorate capitals in Egypt Archaeological sites in Egypt Populated places in Aswan Governorate Roman sites in Egypt Tourism in Egypt Medieval cities of Egypt Upper Egypt