Philadelphia is enduring one of its warmest 4th of July celebrations on record, with temperatures exceeding 100 degrees ...

The metric of how hot the air actually feels has roots in a 1979 journal paper called “The Assessment of Sultriness.” By Andy Newman In recent days, you may have seen or heard many mentions of a ...

A few notable men kept weather records 250 years ago during the adoption of the Declaration of Independence in Philadelphia.

In cities across the U.S., parades were canceled and events were delayed because of the heat. Meanwhile, emergency rooms saw ...

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