While trying to figure out the best time to rent a Harley in Vegas, I found this handy-dandy wind chill table that illustrates varying riding temperatures. I'm sure you long-time riders out there have a pretty good sense of this and don't need the chart but I thought some other folks might find it useful. You know, beginner riders or overly analytical people like me
http://www.xs11.com/tips/riding/ride4.shtml
http://www.xs11.com/tips/riding/ride4.shtml