A mix of wintry weather poured into western Maine on the first day of December, confounding drivers in Franklin and Oxford counties. One driver was killed on an icy road in Avon.

The one-two punch consisted of freezing rain, heavy rain, sleet, snow and fog in the morning, followed by more rain in the afternoon, topped off by high, gusting winds through midnight.

At 4:43 a.m. the National Weather Service in Gray issued a winter weather advisory for far northern New Hampshire and the mountains of western Maine.

State police said a Chesterville man was killed in Avon in a two-car collision at 6:20 a.m. on Route 4. A passenger was hospitalized in Lewiston in serious condition, and the other driver treated and released from a Farmington hospital.

A Maine Department of Transportation sand truck slid off Route 4 south of Rangeley.

In Mexico, at about 11 a.m., a young Roxbury girl escaped injury after the sports utility vehicle she was driving slid downhill in a curvy stretch on Route 120, crashed into a rock and flipped onto its side off the road, Mexico Patrolman Mike Richard said.

Ashley Orr, 17, was driving a 1999 Dodge Durango SUV south on Route 120 when she encountered slush and lost control, Richard stated in his report.

The SUV sustained an estimated $9,000 in damage.

By 11:30 a.m., snow and ice had lined both sides of Route 120 in Mexico, and Route 17 from Mexico north into Byron. Standing pools of water that blotted out lanes created another hazard.

Most of the problems occurred on roads in the higher elevations of the two counties, said state transportation western region manager Norm Haggan.

“The tough ones to treat were the ones in higher elevations where we had a real wet snow packing on the roads,” Haggan said. “At noon, it was snowing hard from Rangeley to Oquossoc, but it was raining hard in downtown Oquossoc.”

Haggan said he had crews out at 4:30 a.m. sanding roads. By 7 a.m., he said, every state truck north of Route 2 was out working on the roads.

“We cover all the way to Jackman and Greenville now, so we’ll still have some on by 8 p.m. tonight, and then we’ll have a night patrol on from 10 p.m. on,” he said.

Night patrol crews track the storm, looking for ice-ups, water drainage problems, and stranded drivers.

In Franklin County, Sheriff’s deputies responded to seven motor vehicle wrecks in the county’s northern region between 7:30 a.m. and 1:15 p.m.

“It’s the first storm of the season, and people forget how to drive in it,” said Dep. Aaron Turcotte.

Haggan said Rangeley had between 3 and 6 inches of snow in areas, where roads were covered with slush, glare ice and ice build-up.

Early rainfall amounts ranged from 1.56 inches in Livermore at 4:20 p.m. to 1.03 inches in Wilton at 3:15 p.m. Rangeley was the high-snowfall area by 8:30 a.m., recording 3-and-a-half-inches.