Everest's Temp of -36 ± 2 °C and WCT -66 ± 3 °C were found to be less extreme than K2's Temp of -45 ± 1 °C and WCT -76 ± 2 °C. (4) Conclusions: Everest presents more extreme conditions in the climbing and midwinter seasons than K2. K2's 8° higher latitude makes its midwinter BP similar and Temp lower than Everest's.