CHICAGO (AP) — The good news for many in the Northeast and Midwest was that it has been a white Christmas. The bad news was that a blizzard swept into parts of New England and bitter cold enveloped much of the Midwest.

Even the usually rainy Pacific Northwest got the white stuff. The National Weather Service says it’s only the sixth time since 1884 that downtown Portland had measurable snow — only an inch or two — on a Dec. 25.

A blizzard warning was issued Monday for portions of Maine and New Hampshire, with forecasters saying snow of up to 10 inches and wind gusts up to 50 mph could make travel “dangerous to impossible.”

States from Montana and the Dakotas to Wisconsin expected wind chill temperatures in places at 40 below zero, the National Weather Service said. The upper half of Iowa and northern Illinois also braced for subzero temperatures.

Minnesota experienced its most frigid Christmas Day since 1996, with wind chills as cold as 35 degrees below zero, KSTP-TV reported.

Snow amounts in the Midwest were not large for this time of year. A storm system that swept from Nebraska through Iowa dropped around 2 inches of snow on Chicago.

That was just enough to provide a picturesque backdrop for those gathering for Christmas dinners in the Chicago area. But it wasn’t enough to cause havoc either on roadway or airport runaways.

Chicago’s O’Hare International Airport was reporting just six cancelations and average delays of only 15 minutes around noon Monday. There were no cancellations at the city’s other major airport, Midway, and delays were less than 15 minutes on average.

The nation’s third largest city had comparatively little snow for the season until the weekend — just over 2 inches in all, the National Weather Service said.

The city of Milwaukee had 103 salt trucks treating slick spots Monday. The trucks were using treated salt that’s deployed when temperatures drop below 15 degrees.

In addition to slowing travel in New England, the storm was responsible for some power outages. Eversource reported more than 20,000 customers in eastern Massachusetts without electricity, the bulk on Cape Cod which was feeling the brunt of strong winds.

Most of Indiana had been under winter weather advisory with officials urging motorists to stay put unless they absolutely had to travel. Northern Indiana had been expecting up to 5 inches with slightly less in the southern part of the state.

New England was expected to get up to 8 inches of snow. Strong winds were predicted for Massachusetts, Connecticut and Rhode Island with gusts up to 65 mph.

Mountain areas in parts of Colorado, Montana and Wyoming received more than 1 foot of snow, which started Saturday. It was good news for holiday skiers and resorts which have struggled with a slow start this season.

But it meant a heightened warning of avalanches in higher elevations outside of ski areas.