 About 7.4% of families and 10.1% of the population were below the poverty line, including 3.7% of those under age 18 and 13.1% of those age 65 or over.This climatic region is typified by large seasonal temperature differences, with warm to hot (and often humid) summers and cold (sometimes severely cold) winters.According to the Köppen Climate Classification system, Creighton has a humid continental climate, abbreviated "Dfa" on climate maps.