Question

In terms of human comfort, is humidity a greater concern in a cold or a hot climate, and why?

Answer

Humidity is a greater concern in hot than in cold environments, at least insofar as human comfort is concerned. In hot conditions, body heat is primarily lost through evaporation through the skin. This evaporation is greatly impacted by the level of humidity. Humidity, by the way, is defined as the percentage of water vapor in the air relative to the maximum amount of water the air can hold at a given temperature.