Hottest U.S. temperatures on record

Published On: Jun 21 2012 08:25:13 AM PDT   Updated On: Jun 28 2013 06:59:35 AM PDT

A potentially record-breaking heat wave is melting the Southwest. Check out the hottest U.S. temperatures on record.

Hottest Record - South Dakota
10 / 18

10. (tie) South Dakota -- 120 degrees (July 15, 2006)

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