United have won only two times in the last 11 league visits to the Lancashire ground, although the point secured last season clinched the 19th title.
"It's always been a tough place to go for us," Giggs told ManUtd.com. "It's like a mini-local derby. We always take good numbers there but that just seems to lift the Blackburn fans, who are always up for it.
"On a few occasions down the years we've not played very well there and we've had one or two players sent off at Ewood Park as well. It's just been a tricky place to go, although we do have good memories of going there from last season when we won the league at Blackburn.
"It's important we go there to try and get a good result but I don't think this fixture will have the same sort of impact on the title race as it has in the last two seasons. There are still too many points at stake. Even if we lose at Blackburn, there will be another 21 points to be won. I can see it going right down to the wire."