Sales for the most popular electric vehicle models have fallen to the lowest levels in months, probably affected by the normal winter sales slump and the unusually bad weather in January.
The Nissan Leaf and the Chevrolet Volt electric cars both saw falling sales last month, according to Green Car Reports.
While the Leaf's 1,252 in sales was actually the model's best January ever, the figure marked the lowest month for the car since February 2013.
The Volt fared worse with January deliveries of 918, which was the model's lowest sales number since two years before, Green Car Reports said.
For the year, the Leaf scored 22,610 in sales, more than doubling 2012 numbers, while sales for the Volt stayed steady at 23,094, which was slightly lower than the previous year.
Sales figures haven't been revealed yet for the popular, up-and-coming Tesla Model S, the plug-in luxury sedan that recently marked registrations in every state. The numbers should be revealed when Tesla Motors releases its first quarterly figures in the late spring.
The Ford Fusion Energi continued to do well even in a weaker month for the automaker, selling 553 models in January, according to Green Car Reports.
Introduced in February 2013, the plug-in was a "surprise hit" for Ford, racking up more than 6,000 in sales during the year.
The fourth most popular plug-in car, the Toyota Prius, sold 803 units in January. The figure marked the car's slowest sales since June.
Carmakers blamed especially rough winter weather on poor January sales, analysts predicting a rebound in the next two months, Reuters reported.
American carmakers Ford and General Motors saw falling sales along with Toyota and Honda.
"The weather's an easy scapegoat--it will be interesting to watch February and March to see if those lost sales in January get made up," Larry Dominique, executive vice president at industry researcher TrueCar, told Reuters.
Chrysler actually saw increases in the double digits last month for Jeep and Ram trucks, teasing that "The bad weather only seemed to affect our competitors' stores."
Overall, total auto industry sales dropped 3.1 percent to 1,011,188, according to Reuter's analysis of data from the manufacturers.
Carmakers remain confident that the industry is still on the rise.
"I don't think those sales are gone for good," Nissan executive Fred Diaz told Reuters. "I think February is going to be a good month for the entire industry."
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