In reply to your link Kar although the temps before christmas were not correct we did indeed have some very windy storms which produced lots of rain on or near 1st Jan. So Jonathan called that one quite well. He also said in that excerpt you posted that temps would be above normal at 12*C or so well i can say down here his temp predictions were spot on. I am still wearing tshirts under my coat.
The forcasters cannot be right all the time and the example you posted does have some of the events included in it which we have experienced.
It's the tabloids who blow things out of proportion not the forcasters. It sells papers and our weather has always been a much talked about topic.