As I understand, CA curing is a chemical process. Most chemical processes proceed more slowly at lower temperatures. Even though you apply accelerator, the chemical reaction involved in CA curing will be slower. Therefore you have to allow longer time between applications of CA/accelerator, and you have to allow longer time after your last application for the overall curing process to occur.
A lower air temperatures, the humidity is usually lower, so I would think that adverse humidity effects would be lessened during CA application in cold weather.
I would think that you should allow extra time before bringing your CA-coated blank indoors, because indoor temperature air will have higher humidity and could affect the coating.
I keep those considerations in mind when working with CA and have had no problems.
When I was a novice with CA, I used to have the whitening problems often mentioned.
I can't explain the reason, but in the last 4 or so years of working with CA finishing I have had no whitening problems. It seems to me to be a matter of technique but I don't know what improvements I have made.