In the widely used Köppen climate classification system, the Temperate climate zone (Group C) is fundamentally defined by its mild winters. What is the minimum temperature criterion for the average temperature of the coldest month to classify a region as Temperate (C), differentiating it from the colder Continental (D) climate zone?
💡 Explanation:
In the Köppen system, the major boundary separating Temperate (C) climates from Continental (D) climates is the -3°C isotherm. If the average temperature of the coldest month is below -3°C, the climate is classified as Continental (D). If it is above -3°C (but below 18°C), it is classified as Temperate (C).
