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How can highland climates occur at any latitude?

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Köppen climate classification map — Köppen climate classification The major climatic types are based on patterns of average precipitation, average temperature, and natural vegetation. This map depicts the world distribution of climate types based on the classification originally invented by Wladimir Köppen in 1900.

Highland climates (H) can occur at any latitude because they are defined by elevation rather than by the latitudinal temperature patterns that dictate other Köppen climate classification types.12

While the standard Köppen system relies on temperature and precipitation criteria to categorize climates, the highland category is added to account for mountainous regions where altitude significantly alters local conditions. As elevation increases, atmospheric pressure and temperature decrease, creating distinct mesoclimates and microclimates that differ from the surrounding lowlands.213

Because these cooling effects occur regardless of a location's distance from the Equator, high-altitude areas can experience cooler, wetter conditions than their latitudinal position would otherwise suggest. Consequently, the characteristics of a highland climate are highly dependent on the traits of adjacent zones and the specific elevation of the terrain, allowing this climate type to exist globally.132