Yes! It got really cold and fast once that pattern changed. February was frigid. I still remember that Valentines Day storm thread, we actually had several posters in BTV at the time. It started snowing at 0F and we got like the first foot of snow at temps of like 5F. It was so, so cold. Coldest major snow of my life and the BTV obs show it. I think it eventually rose into the mid-teens at some point (but that's still a cold air mass for 2+ of QPF)... but that's just another reason why that storm was so great.
I do remember late January and the first half of February in 2007 didn't have much synoptically until Valentines Day... but we did have a big increase in upslope snows with the arctic air masses starting to come in. I remember the snowpack didn't grow all that fast (outside the 2,000+ foot elevations) despite the snowfalls because of how cold/fluffy it was, but it was nice to see regular snow at that point and it was still serviceable for skiing. After Valentines Day the snowpack was set for the rest of the season.
What you describe sounds like the classic Northern Greens though... like when I've got 4-6" on the ground at my house with 1.5sm -SN at MVL and then you drive a few miles up the road and there's a couple feet on the ground at 1,500ft+ with SN+ wind-whipped blizzard style.