Islip, New York, where the average high for December is 44 degrees, saw the mercury hit 68 degrees Saturday, and record highs were set at New York's LaGuardia Airport, where the thermometer read 66 degrees, as well as at JFK Airport and in Bridgeport, Connecticut, which both saw spring-like weather, NBC New York reported.
"It's roasting," said Niall Traynor, who was in New York on business with two co-workers from Belfast, Northern Ireland. His colleague Mack Murtagh said the trio hadn't expected the balmy weather.
"We kind of packed for 0 degrees [celsius], and now all our clothes are too hot ... and without buying something else, we're kind of stuck — so we have to just walk around really hot all day," Murtagh said.
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Arshad Shahadat, who sells paintings on the street near Rockefeller Center, said he didn't mind the uncharacteristic weather because he is selling substantially more this Christmas season than any other year. "I like the warm," he said.
Many revelers who took part in New York's Santa Con on Saturday took advantage of the Christmas-in-July temperatures, donning un-Santa-like shirt sleeves, shorts and tropical wear.