It was more than blocking. It was the overall placement and orientation of the long wave trough this year. Believe it or not, I think the -PNA actually benefitted your area, too bc it kept shredding systems that otherwise would have nailed NE. The blocking did this more earlier in the season when there was a +PNA, but then later in the season when it kept happening event when the NAO neutralized some be because the RNA developed and kept a compressed flow in place. The energy would dump west, and begin to attenuate on approach to the east coast. This is also why everything was LBSW in that it would nail NYC/NJ longitude, and peter out some over here.That is something unique to this season bc regardless of blocking and how the Pac look, latitude is usually beneficial in la nina...look at 2010-2011. NYC did well, but NE better.
Not this year.