Ok, let's get this straight.
ONE OR TWO INSTANCES OF COLD WEATHER DO NOT DISPROVE GLOBAL WARMING. If global warming said, as a theory, that there would never be a record cold temperature, you might have something. As it is, you are arguing against a strawman.
http://en.wikipedia.org/wiki/Strawman
No one is arguing that there will never be a cold temperature again, or record colds might exist, or anything that asinine.
Your argument is akin to arguing that it's not a 50/50 chance for a coin to land heads-side up, because you just flipped a coin ten times and it came up heads 8 out of 10.
Disclaimer: I'm relatively ambiguous on global warming, and merely think it's true because the majority of scientists say so. I'm no expect. If the majority of scientists said something different, I'd agree with something different.