56, 5'-10", 173 lbs.
Until the heat hit, I was nudging 18 mph averages commuting home on my long loop. I can't sustain that for more than an hour. I have to back off for longer rides and have typically been a couple of tenths either side of 16 on this year's 50-70 mile rides, depending on hilliness.
My average for all rides so far this year, which includes all those snowy commutes through the winter, and all those trips back from the grocery store with full panniers, is 15.53