Yes, but this is not necessarily a good thing - I prefer a small globe against any ranged enemies (and use Rhino against Infested...).
As 86.132.254.73 says, a large globe is actually a detriment in some situations, ecspecially against Corpus walkers at higher levels, as they will just charge inside before firing. Against Infested though, the large AaE slow is great.
Increasing the range of Avalanche is great, since it is already so big, and Ice Wave likewise benfits since it grows wider with range increase. However, since Snow Globe is Frosts signiture skill, and it has a tendewncy to lose effectivness when it grows to large, It comes down to weighing the benefits to the other skills you are using against the effectivness of a large globe against the faction you are fighting.
I use Stretch when fighting Infested at all ranks (for the AoE slow), and swap it for another mod when fighting Grineer or Corpus above lvl 35 (Where Avalanche and Ice Wave become unable to consistently one-shot opponents).
The slow effect actually is not affected by the size of the globe. You'll notice the "blizzard" effect (the part that's colored by your energy) doesn't grow to fill the globe - in fact, if you use the Narrow Minded mod to reduce your range, the blizzard effect sticks out and slows down things that are outside the actual globe.