cold weather throttling problems on 2005 Chevrolet Cobalt

I have a 2005 colbalt with automatic transmission. When ever it gets cold out my car throttles down to the point where it seems like its going to die and then throttles back to normal, when ever I am not pressing the accelerator. Its not all the time, and it mostly occurs when ever the car is in gear.

Asked by for the 2005 Chevrolet Cobalt
maybe it is a normal operation