A deep freeze took over the Northeast Sunday and many low temperatures shattered records from New York City to Boston.
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New York City
Central Park dropped below 0 degrees Sunday for the first time in over 20 years. The temperature was -1 as of 6:57 a.m.
This was the first 0 degree morning in NYC since 1994.
The wind chill in NYC was -19 as of 6:30 a.m.
John F. Kennedy Airport reached 1 degree this morning, breaking the record of 4 degrees set back in 1979. LaGuardia Airport tied its record low of 1 degree, which was previously set in 1979.
Binghamton, New York, reached -18 degrees, which is tied for the second coldest temperature on record.
Boston hit -9 degrees this morning -- the coldest since 1957. At 7 a.m. the wind chill -36.
In Worcester, Massachusetts, about 50 miles west of Boston, the wind chill reached -44 this morning.
Wind chills in this cold can bring on frostbite in 10 minutes, according to the National Weather Service, so outdoor exposure should be limited. If you are going outside, dress in layers, and keep your hands and head covered.
ABC News' Dan Manzo and Dan Peck contributed to this report.