I cite the following post that I've pasted below... 1.5 Liters is what he says: Obada Barry, DMD.
Seasons have a much greater impact in the interior. In the Sahara Desert, summer temperatures often exceed 104ÂºF/ 40ÂºC in summer, but may fall to near freezing during winter nights. In terms of rainfall, the northern part of Morocco is considerably wetter than the arid south (especially along the coast).
The average temperature of the hot desert ranges from 20 to 25Â° C, but its extreme maximum temperature ranges from 43.5 to 49Â° C. As an example the Sahara desert's night temperatures during the winter months can drop to -5 ÂºC and some ares can even experience frost.he average temperatures of the cold desert in winter ranges from -2 to 4Â° C, whilst in the summer it ranges from 21 to 26Â° C. Taking Antarctica (the most extreme cold desert) as an example, its lowestt temperature was â89.2 Â°C and its highest temperature was14.6Â°C.