During Winter months, most soda or juice companies will suffer less sales because some people don't drink cold liquid in cold days.
That's normal and we shouldn't be surprised by that.
Relax, sales will increase alot more when warm weather starts.
December 2012 was the 10th warmest December on record; December 2011 was the 26th (out of 118 years). December 2011 was just about as warm in the northern United States as December 2012, so not really. Anyone who follows Coke knows the growth is internationally where per capita consumption is miniscule (China and India in particular) in comparison to the United States and Mexico. I don't think either Coke or Pepsi are sitting idly by without other beverage alternatives to soda.