The average in this part of the world (people's republic of Maryland) is the same as it was 30 years ago, about $50 per hour with a $200 minimum. Some really good musicians that I know play for a lot less when it's a regular, four to five night a week job. They're probably averaging about half that at $25 to $30 an hour plus tips. Depending on the gig, the tips can vary from just a few bucks to a couple hundred.

Good Luck,

Gary