The Utah Highway Patrol said few accidents had been reported Sunday because it appeared most Utahns were "hunkering down."
Troopers recommended people stay off roadways unless it is absolutely essential to go out.
Hundreds of motorists found themselves trapped on the Interstate 15 Virgin River Gorge between St. George and Mesquite, Nev., late Saturday night after the Arizona Department of Public Safety closed the roadway due to icy conditions.
The roadway was reopened in both directions just after noon Sunday.
Troopers said that since 7 p.m. Saturday, they had worked 46 crashes in Salt Lake County, seven in Utah County, 36 in Weber County and 31 in Davis.
Also in Salt Lake and Utah counties, 46 vehicles slid off roadways, but no damage was reported.
The storm had cleared out in St. George by Sunday morning, but not before the system dumped 6 inches of snow. And while that might seem like a lot for the southern Utah city, the record is 15 inches, the weather service said.
If the weather news wasn't bleak enough, Sunday also marked bad news for backcountry skiers. Every mountain range in Utah was under a "considerable" avalanche danger, meaning human-triggered avalanches are likely.
As for the rest of the week, the weather service projects temperatures will climb through Sunday. Northern Utah will see high temperatures hit the 30s by the end of the week, while southern Utah can expect highs in the upper 40s by the weekend.
Michael McFall contributed to this report.