@阿里萨斯 #144449 "Tripoli has a hot semi-arid climate (Köppen: BSh) with hot and dry, prolonged summers and relatively wet mild winters. Although virtually rainless, summers are hot and muggy with temperatures that often exceed 38 °C (100 °F); average July temperatures are between 22 and 33 °C (72 and 91 °F). In December, temperatures have reached as low as 0 °C (32 °F), but the average remains at between 9 and 18 °C (48 and 64 °F). The average annual rainfall is less than 400 millimeters (16 inches). Snowfall has occurred in past years.
The rainfall can be very erratic. Epic floods in 1945 left Tripoli underwater for several days, but two years later an unprecedented drought caused the loss of thousands of head of cattle. Deficiency in rainfall is no doubt reflected in an absence of permanent rivers or streams in the city as is indeed true throughout the entire country. The allocation of limited water is considered of sufficient importance to warrant the existence of the Secretariat of Dams and Water Resources, and damaging a source of water can be penalized by a heavy fine or imprisonment."