We have always had huge day-to-day and year-to-year variations in our weather, and we always will do, and a couple of cold winters are no more evidence that climate change has stopped than a single summer heat-wave proves that global warming is happening.
There are potentially weather related anomalies that might be affected by the rise in temperatures, putting variations along the extremes, rather than a comfortable middle ground.
It is extremely difficult to measure weather consistently over decades and centuries, but the presence of sites reporting cooling is a symptom of the local variations that can creep in, according to researchers.