The National Climate Data Center has a great site for graphing the many climate divisions and climate regions across the U.S. So I plotted the winter (December through February) average temperature trends for various regions around northern Ohio since 1940. I chose 1940 because prior to the late 1930s, the official NWS temperature reading was taken at various locations throughout the Cleveland area. Since 1940, Hopkins Airport has served as the official NWS temperature location.
Notice the very cold winters of the early 1960s, late 1970s, highly variable winters of the 1990s and early 2000s and the last two cold winters at the far right side of the graph.
Overall, the trends are similar with each graph showing winter temperatures more consistently above average since the early 1980s. The overall warming trend however amounts to a tenth to a few tenths of a degree per decade in Cleveland and surrounding climate divisions and outside regions.
Note: My only aim is to show the past winter temperatures (December through February) with NCDC data. Nothing more. Nothing less.
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| ENTIRE STATE OF OHIO |
Ohio climate divisions:
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| NORTHEAST OHIO |
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| NORTH CENTRAL OHIO |
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| MANSFIELD, ASHLAND REGION |
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| CORNBELT |
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| OHIO VALLEY: OH, IN, IL, MO, KY, TN, WV |
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