Temperature

Average Temperatures
Valley: :
 * Midnight: 35.5C (You will be chilly without a heat source, slowing you slightly)
 * Night: 35.7C (You will be chilly without clothing)
 * Day: 39.5C (You will be hot when near heat sources, causing mild nausea)
 * Noon: 39.6C (Hot while wearing armor)

Desert:
 * Midnight: 31.0C (Lethal without a large heat source)
 * Night: 31.3C (Lethal without a small heat source)
 * Day: 41.3C (Lethal without mitigation)
 * Noon: 42.05C (Very hard to mitigate)

Mitigating temperature changes

 * Simply taking shelter under an awning or indoors is enough to reduce the effects of heat/cold by 1C.
 * Wear clothes or stay near heat sources to stay warm
 * Drink water, stay out of the sun, and submerge in water (partially or fully) to stay cool.
 * Be a race that has a resistance to heat/cold effects.