But defeats against Ireland and England put paid to those chances ahead of the visit of Scotland to Cardiff for the final round.
But despite those disappointments, Warren Gatland's troops were back to their best against a Scotland side who had Stuart Hogg sent off in the first half for a shoulder charge on Dan Biggar.
North crossed twice while Jamie Roberts also bagged two, Liam Williams, Taulupe Faletau and Rhodri Williams scoring the tries in the 51-3 mauling.
And North admitted that while defeat at Twickenham last weekend was still raw, victory over Scotland was a good tonic for his teammates.
"It has been a tough few weeks for us. We went to Twickenham and didn't get the result we wanted against England," he said.
"From last week it's a great performance. We trained really hard after that and I think it showed. I am happy with two tries but all the boys played exceptionally well.
"It doesn't make up for the England defeat, but the performance was good and we finish the campaign on a high note."
In slightly less good news it appears that captain Sam Warburton will miss Wales' summer tour to South Africa after dislocating his shoulder in the Scotland clash.
"It looks like he's dislocated his shoulder and they had to put it back in after the game," Wales head coach Warren Gatland said.
"It looks like he'll be ruled out for the rest of the season and probably the tour as well.
"He's being scanned tomorrow [Sunday] and the likelihood is he'll probably need an operation on that."
Warburton joins Leigh Halfpenny on the treatment table and the duo will be big losses for the tour to South Africa.