More than 1,000 flights were canceled at Dallas-Fort Worth International Airport, one of the nation's busiest airports.
Organisers of Sunday's Dallas Marathon cancelled the event.
The same wintry blast is hitting much of the US.
A quarter-million customers were without electricity yesterday morning in the Dallas area, utility company Oncor reported.
In the Dallas area, residents are still haunted by a fiasco two years ago, when an inadequate response to a winter storm crippled the region and left visitors stranded on impassable highways.
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Police in Arlington, about 20 miles (32 kilometres) west of Dallas, reported that icy roads were a factor in the death of one driver whose car hit a truck pulled to the side of the road.
Three other traffic deaths in Oklahoma and Indiana were blamed on the weather.
Dallas-area light rail trains were not running.