defines a climate as "temperate" C, when the mean temperature is above -3 C but below 18 C in the coldest month to account for the persistence of frost. However, some adaptations of Köppen set the minimum at 0 C. The broader definition of temperate climates may include continental climates, classified as D and having more extreme temperatures, with mean temperatures in the coldest month usually being below -3 C.

Zones and climates

The north temperate zone extends

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