Is this normal for my skin to be feeling this dry and what moisturizer would you recommend?

I would follow up with the provider who performed the treatment.  They can evaluate your skin and determine the best treatments/products to help resolve your concerns. 

Although the majority of your skin is healed at this point, you still have some healing that is taking place and this can often lead to dryness.  We recommend a Hydrafacial treatment to all of our Halo patients 2 weeks after surgery to help exfoliate any remaining skin and infuse hydration back into the skin.  Additionally I would recommend the gentle daily moisturizer from Elta MD along with one of their facial sunscreens. 

You could go back to your doctor and see their esthetician. If the face is really dry, you could benefit from a hydrating mask. At that point you can discuss which products you are using at home and the esthetician can recommed products that suits your needs.