The first five months of 2012 were the warmest on record for many Great Lakes cities, according to the Great Lakes Echo.
“The Midwest and upper Midwest just experienced a spring that was literally off the charts,” said Deke Arndt, chief of the climate monitoring branch at the National Climatic Data Center. “We literally had to rescale some of our charts to accommodate the warmth we saw this spring.”
Thirty-eight cities in the Great Lakes region knocked out serious long-standing heat records, according to the National Oceanic and Atmospheric Administration, which administers the data center. Nationwide, 104 cities set records.
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Great Lakes Echo
