Even before the major winter weather hit much of the country in February, it seems shoppers were already in the market for more snow-efficient models.

Last month, demand for small and midsize trucks rose, making these desirable units hard to find on dealer lots.

That’s according to January’s scarcity data for CPO and used vehicles provided to Auto Remarketing monthly by AutoTrader.com.

The big story line this past month was a dwindling supply of small trucks, especially for the  CPO Chevrolet Colorado and CPO GMC Canyon, as well as the CPO Toyota Tacoma.

“Car shoppers are waking up to the new and upcoming offerings in the once sleepy midsize truck segment, resulting in demand outstripping supply, according to AutoTrader.com’s monthly scarcity report,” said Michelle Krebs, senior analyst at AutoTrader.com.

For example, the CPO Chevrolet Colorado ranked 10th on AutoTrader.com’s national list of CPO and used vehicles in high demand and short supply last month.

When looking at specific metro areas across the U.S., the same CPO Colorado ranked even higher than it did nationally, Krebs pointed out.

The CPO Chevrolet Colorado was the No. 1 scarcest vehicle in Chicago; No. 2 in Philadelphia; No. 3 in Houston; and No. 5 in New York.

Krebs also reported that units “sibling,” the CPO GMC Canyon, also proved hard to find, coming in at the No. 10 hardest-to-find certified vehicle in Philadelphia.

“General Motors re-introduced the newest Chevrolet Colorado and GMC Canyon in 2014, after ending production of the earlier version in 2012. The new trucks bear little resemblance to the earlier ones, except in name,” Krebs pointed out.

“Interest in small-to-midsize trucks had waned to the point that Ford ended production of its Ranger, and Chrysler curtailed the Dodge Dakota. That left the Toyota Tacoma as the leader in the segment, which until the return of the Colorado and Canyon, only included the Nissan Frontier and Honda Ridgeline,” she continued.

Now, the tides have turned. In light of impressive sales of the new Colorado and Canyon, GM has added a third shift to produce the trucks that are “now in short supply at its Missouri plant,” Krebs said.

And according to AutoTrader.com shopping data, there has been renewed interest in smaller pickup trucks, with the Chevrolet Colorado out in front.