In climatology, the term mesothermal's used to refer to certain forms of climate found typically in the Earth's Temperate Zones. It's a moderate amount of heat, with winters not cold enough to sustain snow cover. Summers are warm within oceanic climate regimes, and hot within continental climate regimes. Origin of term The term's derived from two Greek words meaning "having a moderate amount of heat." This can be misinterpreted, however, since the term's actually intended to describe only the te… (More on Mesothermal)