NEW YORK (TheStreet) -- Shares of Fiat Chrysler Automobiles (FCAU) - Get Report are down 3.47% to $15.28 after the automaker missed estimates for February sales.

Total sales for last month rose 5.6%, compared with the average analyst estimate for an 8.9% gain, according to Bloomberg.

Despite the miss, U.S. sales of 163,586 units represented a 6% increase compared with sales in February 2014, the best February sales since 2007, the company said.

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The Jeep brand's 21% increase was the largest sales gain of any of the company's U.S. brands during the month.

"In spite of snow and bitter cold that slowed auto sales in many regions of the country, FCA US still turned in a 6% sales increase and extended our year-over-year sales streak to 59-consecutive months," said Reid Bigland, Head of U.S. Sales.

Other top automakers also reported smaller gains than analysts had estimated as cold weather slowed showroom traffic, Bloomberg reports.

Ford Motor Co. (F) - Get Report U.S. vehicle sales fell 1.9% compared to estimates for a 5.8% increase. General Motors Co. (GM) - Get Report's sales rose 4.2%, missing estimates for a 5.9% increase. Toyota Motor Corp. (TM) - Get Report, which reported the biggest gain among the group with a 13% increase, also fell short of estimates that had expected a 15% bump.

"It's hard to believe weather wasn't a factor," senior analyst at AutoTrader.com Michelle Krebs told Bloomberg. "The Northeast is a huge small-utility market, so that had to have some impact. I'm not worried that they're off a couple of percentage points. They'll probably make it up in March and April," Krebs added.

Earlier today, Jim Cramer provided more insight into some of the auto sales numbers reported, namely those of GM in his 'GM Feb. Sales Miss, but Pricing Improves' on Actionsalertsplus.com.

Here's a snippet of what he had to say:

General Motors reported U.S. February sales rose 4.2% y/y, below consensus for a 5.9% increase. We are not placing too much weight on the headline miss, however, as the softer sales are likely explainable, in part, by adverse weather conditions (Chrysler cited this as being a major factor in many regions of the country during the month).

On a positive note, average selling prices rose to a new record of $34,700, up $2,700 y/y, aided by a stronger mix of pickup trucks and SUVs as well as more modest incentive spending. Incentives as a percentage of average selling prices came in at 9.7% in February, 90 basis points lower than in January and below the industry average of 9.9%, indicating continued pricing discipline by GM.

We are encouraged by GM's mix, which involves stronger pickup and SUV sales, and believe this shift is being driven by low gas prices, plentiful availability and relatively easy comparisons as these vehicles were launching a year ago. In fact, Silverado and Sierra sales rose a combined 19.2% y/y and large SUV sales jumped by a whopping 68.4% y/y. Silverado, in particular, had another excellent month, with sales rising over 24% y/y to 45,395 units, and J.D. Power PIN data estimating Silverado gained 150 basis points of retail share over the last year.

Including the recently launched mid-size pickup trucks (Canyon and Colorado), total GM pickup sales rose 37% y/y, seeming to confirm the logic of the automaker's "three pickup" strategy. K2XX platform vehicles (combination of full-size trucks and SUVs) rose 28.1% y/y in February to comprise 34.4% of GM's total monthly sales, up strongly from 28% a year ago, yet another indication of a much richer vehicle sales mix.

We have a neutral view of the results, and believe the miss is offset by stronger underlying pricing trends. Our target is $45.

-Jim Cramer, 'GM Feb. Sales Miss, but Pricing Improves' originally published 3/3/2015 on Actionsalertsplus.com.

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