After days of blistering heat, the nation's sweaty East Coast got to open windows, step outside and get temporary relief on Friday as temperatures plummeted as much as 40 degrees and humidity dropped alongside.
At least 68 record highs were set and more than 20 places logged triple-digit heat from Sunday through Wednesday before a cold front from the north broke a heat dome's grip on the region Friday. Boston, which hit a record 102 Fahrenheit (about 39 Celsius) on Tuesday, was at 61 (about 16 Celsius) on Friday.
