It’s hot. And it’s going to stay hot for millions of Americans. These graphics explain the trend

CNN —

It’s been a scorching summer for many Americans, with tens of millions living in areas under extreme heat.

Over the last three weeks, more than a third of the population has experienced weekly average maximum temperatures above 90 degrees, particularly in the southern half of the country.Last week, nearly 12% of Americans dealt with average highs topping 100 degrees, according to the US Centers for Disease Control and Prevention . That’s the highest percentage of Americans feeling average highs in the triple digits so far this summer. More than a third of the US saw average highs above 90 […]

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