It's not that forecasters are trying to be Scrooges; the conditions just aren't quite right.
Rain will move in by midnight, Leptich said, petering out by midmorning on Christmas Day, with partly sunny skies and temperatures in the lower 40s for most of the day.
Wednesday and Thursday could bring more showers, with a low chance of snow on the weekend, she said.
But the Hudson Valley could see up to an inch of snow before daybreak.
Temperatures will peak in the low 40s on Monday on Long Island and drop to the mid-30s overnight, meteorologist David Stark said.
"Unfortunately, for those wanting a white Christmas, it doesn't look like we're going to see conditions that would warrant that," Stark said. "For those who want snow, it's just a little too warm on Long Island."
Clouds will increase throughout the day on Christmas.
In the Hudson Valley, snow could turn to light freezing rain early Christmas morning, Stark said. Snow could accumulate up to an inch, he said.
Freezing rain could make for treacherous road conditions, he said.