what eden said...
different rides are going to give you different results. when i started i was slow in comparison to the local riders...20 mph. now to those girls in the mtns i was fast...i now live in the mtns and have been working on my speed but not by looking at average speed unless it is the same route i am comparing...some routes i average 13-14 some i average as high as 18...the hills are to blame! you have wind...each day is different there so it may be harder to judge.
average speed is better taken seriously in a controlled environment.
pedal on and enjoy!!!
I am a nobody; nobody is perfect, and therefore I am perfect.