No, it's nothing major, and I didn't notice it myself until I watched it for a second time.
Of course the opening scene involves the snow related activities, but then we cut to the exterior of The Drunken Clam and there is no snow outside and looks like a perfect sunny day. Inside the guys aren't really bundled up so much (perhaps full heat is on?). Either way, it is the same day as Peter mentions to the guys how he beat Chris at skating that very day.
Just interesting to point out.
Zach dvdlaunch.com