Most of the United States will see a dry holiday with above-average temperatures this year, while some mountainous areas may see some snow.

According to the National Weather Service, the places most likely to experience a “white Christmas” are the Colorado Rocky Mountains and the Cascades in Washington.

While no snow is predicted for the North on Christmas Day, places like North Dakota, northern Minnesota, Wisconsin and northern Michigan could still meet the NWS definition of a “white Christmas” due to accumulation of snow on the ground.

The NWS defines a “white Christmas” as at least an inch of snow on the ground by 7 a.m. local time on Christmas morning.

The Northeast Coast and from West Virginia to Maine in the eastern United States are not expected to have a snowy Christmas, nor are the I-95 corridor from Washington, DC to New York and Boston. But there could be a layer of snow in the Northeast on Christmas Eve.

Heavy flakes could also fall in Maine on Christmas Eve, when 3 to 6 inches of snow is expected to fall in Bangor.

Meanwhile, rain is expected for the Pacific Northwest, the latest in a sustained series of storms, except for the Cascades.

Rain showers are also possible on Wednesday from Chicago to New Orleans, where above-average temperatures are expected.

Temperatures are expected to be 5 to 15 degrees above average for the West, Midwest and South across much of the country this Christmas.

Along the East Coast, Christmas Day temperatures are expected to be slightly below the seasonal average for the Northeast.

This week, however, an Arctic blast that began on Sunday is expected to spill over into Monday, bringing bitter temperatures across the north and northeast.

A cold weather warning was in effect Sunday morning for parts of the Northeast, where windy chills made it feel like 20 degrees below zero in northeastern Pennsylvania, northern New York state and western Massachusetts. The cool wind could make it feel like 25 degrees below zero in northwest Maine.

Monday morning it will be below zero across the Northeast from Upstate New York to Maine due to the wind chill effect. Due to the chilly wind on Monday, it will be up to 10 degrees from Washington, DC to New York City, and in Boston it will be in the single digits.

In the west and southeast, mild weather is expected to continue until Christmas Day. Highs of 64 are predicted for Los Angeles, 71 for Phoenix, 73 for New Orleans and 78 for Miami.