I've found one dragonscale item and one dragonbone item, I was below level 50 both times for certain.
Strangely enough, Daedric seems rarer for me as I've only ever found one (daedric mace), excluding artifacts of course.

300 hours, one pair of Deadric boots, one Daedric axe, one dragonbone cuirass (yes I know it's called armour now). They seem very rare, but you can get them.

I've found Daedric weapons and some Dragonscale armor parts. Also a Dragonplate Shield just recently. All those have been close to level 50, though.

In four playthroughs I found one daedric helm, one cuirass, one bow and one sword. Dragonsomething only one cuirass.
So, it's rare but still possible.

At level 36 I have found exactly 3 Ebony pieces, nothing better than that =(

I just found a Dragonscale armor last night, with 20% frost resist. I sold it at Warmaiden's.

I don't have the smithing perk, and this character was level 45.

Yeah, I was level 42 when I found the armor, and my Smithing is only 28. Pathetic, I know.

I got a pair of enchanted Dragonscale gloves in a chest...at level 59.