The winter season doesn't stop me from riding, especially in a skirt. Tights and boots are popular with younger women in Reno and although I like to wear tights with boots when I'm running errands during the weekends, it's not necessarily "appropriate attire" for the office.
This baby pink dress I am wearing is actually a sleeveless button front summer dress and is perfect for layering!
I try to keep my layers to a minimum to avoid getting too hot (and subsequently sweaty) so that I start out a tad cold and then warm up a few minutes into my ride.
This outfit I wore on Tuesday morning did just fine in 34 degree weather, even with wind chill!! Nothing special, just ordinary pieces from my closet. Bicycling to work in regular clothing can be done. Even in a summer dress.