Logically this post makes a lot of sense. But there are two mitigating factors to consider before slating those with pessimism. Firstly we are in the unknown historically regarding climate change and rapid melting of the polar ice caps , which as I type are surely melting rapidly given this temperatures in Greenland/arctic currently. Therefore we cannot pattern match for this correctly.
Secondly we've see this before, northern blocking and a powerful warm air advection into Greenland early in the summer and the famous 'snot' sitting over us for 2 months. Here in Ireland 2007,08,09,10,11 and famously awful 12 each had at least 2 months of this pattern. Therefore going from off these previous summers and despite my love of sun and warmth I'm not hopeful of a change anytime soon. But will continue to chase the carrot as always!