The heat is back on high: May smashes US temperature records

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WASHINGTON (AP) - Record heat returned to the United States with a vengeance in May.

Federal meteorologists calculate that May warmed to a record 65.4 degrees in the Lower 48 states, breaking a record set in 1934.

Last month, the average temperature across the Lower 48 states was 5 degrees warmer than normal.

It was especially record-warm at night during May. The National Oceanic and Atmospheric Administration reported Wednesday that the average overnight low temperature broke the record by 2 degrees.

NOAA climate scientist Jake Crouch says the high heat comes after a cool April.

Scientists said climate change played a role along with other factors.

U.S. temperature records go back to 1895.

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