Grand Canyon in winter-need snowshoes?

Going to Grand Canyon next month on a trip that will also include Monument Valley and maybe even Bryce or Zion. I have been to the Canyon before, but never in winter.

Will be spending 4 days camping at the south rim and wondering if I might need snowshoes?

Most of my time will be hiking along the rim and out trails to places like Shoshone Point. Might go down Bright Angel trail a ways but my travel companions will rule out getting to the river this time.

Would snowshoes be of use? I have a pair of crampons from my mountaineering days and planned on bringing them just in case. I've had others tell me Yaxtrax might be useful in icy parking lots. I have all the tent, boots, layers etc, it is just snowshoes I wonder about. That is one thing never needed in Texas

And it nothing I have never needed in climbing, mountaineering and backpacking at all.

Needed at south rim in Feb?

Thanks for any input!

I suspect heavy boots will do fine. Most snow out there runs 3 inches, or so.

I would not expect to need snow shoes on the South Rim. As Ken pointed out, most of the snow out there is not very deep. I've kept in touch with a couple of the rangers and it sounds like the deepest snow this season has been 15", but it was gone in a matter of days.

Ice will be your biggest problem if you are hiking into the canyon. Last year in March the were a few small patches on the South Kaibab Trail. Bright Angel Trail had a very long patch of ice near the top. It wouldn't be so bad if other hikers would be respectful of (tired) backpackers coming up the trail. I was bumped into by over zealous dayhikers several times while transitioning the icy area on the Bright Angel Trail. YakTrax would probably work fine, but I preferred to use STABILicers, even though they are heavier and more difficult to pack compared to the YakTrax.

Darren, you also mentioned the possibility of visiting Bryce on this trip.
I was there over New Year. The need for snowshoes will be highly variable depending on recent snow amounts and which trails you choose. Definitely yes for the Bristlecone Pine and the Fairyland loop trails. However, the trails around the common overlooks pack down quickly. The Navajo-Queen's Garden trails are steep and icy, so I highly recommend YakTrax or equivalent.

That helps alot. I'll just bring what I have and not worry about the snowshoes.

Thanks!