Twist chill at Mount Washington drops to short 90 degrees

 Summit conditions at Mount Washington were so brutally cold Saturday  morning the temperature tied for the second coldest on Earth, according  to Mount Washington Observatory.The temperature hit minus 36 degrees Fahrenheit -- with a wind chill of minus 90 (minus 68 degrees Celsius), according to the educational and research institution in New Hampshire. 

 "We basically just start saying it's stupid cold outside," Mike  Carmon, senior meteorologist at Mount Washington Observatory, told The New York Times.The summit of Mount Washington sits at 6,288 feet above sea level.Frigid conditions have  also gripped other parts of the Northeast and are expected to last most  of the weekend. On Saturday, wind chill warnings throughout the  Northeast hit Burlington, Vermont, with a temperature of minus 1 and a  wind chill of minus 30. Both Philadelphia and New York were shivering at  8 degrees, with wind chills of minus 11 in Philadelphia and minus 9 in  New York. And in Hartford, Connecticut, a brutal cold of 10 degrees yielded a wind chill of minus 20. In  New Jersey, many people chose to stay home instead of dealing with  single-digit temperatures. Others were cleaning up from the storm that  dropped more than a foot of snow in some spots earlier in the week.