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11 hours ago · Current Weather for Popular Cities . San Francisco, CA 65 ° F Sunny; Manhattan, NY 68 ° F Fair; Schiller Park, IL (60176) 72 ° F Mostly Cloudy; Boston, MA warning 66 ° F Fair; Houston, TX ...
11 hours ago · The Köppen climate classification is one of the most widely used climate classification systems. It was first published by German-Russian climatologist Wladimir Köppen (1846–1940) in 1884, [1] [2] with several later modifications by Köppen, notably in 1918 and 1936. [3] [4] Later, German climatologist Rudolf Geiger (1894–1981) introduced ...